All Tools
550 free tools across 16 categories
Image Tools
Compress, resize, convert, and optimize images in your browser.
Image Compressor Compress JPEG, PNG, and WebP images instantly in your browser. Reduce file size …
Popular SVG to Code Convert SVG markup into embeddable code snippets such as HTML inline SVG, JavaSc…
SVG to HTML Convert raw SVG markup into HTML snippets and full HTML documents for quick embe…
Convert PNG to JPEG Free Free PNG to JPEG converter in your browser. No upload — convert privately on you…
Free PNG to WebP converter Free PNG to WebP converter in your browser. No upload — convert privately on you…
Convert PNG to AVIF Free Free PNG to AVIF converter in your browser. No upload — convert privately on you…
Free PNG to JPG converter Free PNG to JPG converter in your browser. No upload — convert privately on your…
Convert PNG to SVG Free Free PNG to SVG converter in your browser. No upload — convert privately on your…
Free JPEG to PNG converter Free JPEG to PNG converter in your browser. No upload — convert privately on you…
Convert JPEG to WebP Free Free JPEG to WebP converter in your browser. No upload — convert privately on yo…
Free JPEG to AVIF converter Free JPEG to AVIF converter in your browser. No upload — convert privately on yo…
Convert JPEG to SVG Free Free JPEG to SVG converter in your browser. No upload — convert privately on you…
Free JPG to PNG converter Free JPG to PNG converter in your browser. No upload — convert privately on your…
Convert JPG to WebP Free Free JPG to WebP converter in your browser. No upload — convert privately on you…
Free JPG to AVIF converter Free JPG to AVIF converter in your browser. No upload — convert privately on you…
Convert JPG to SVG Free Free JPG to SVG converter in your browser. No upload — convert privately on your…
Free WebP to PNG converter Free WebP to PNG converter in your browser. No upload — convert privately on you…
Convert WebP to JPEG Free Free WebP to JPEG converter in your browser. No upload — convert privately on yo…
Free WebP to AVIF converter Free WebP to AVIF converter in your browser. No upload — convert privately on yo…
Convert WebP to JPG Free Free WebP to JPG converter in your browser. No upload — convert privately on you…
Free WebP to SVG converter Free WebP to SVG converter in your browser. No upload — convert privately on you…
Convert AVIF to PNG Free Free AVIF to PNG converter in your browser. No upload — convert privately on you…
Free AVIF to JPEG converter Free AVIF to JPEG converter in your browser. No upload — convert privately on yo…
Convert AVIF to WebP Free Free AVIF to WebP converter in your browser. No upload — convert privately on yo…
Free AVIF to JPG converter Free AVIF to JPG converter in your browser. No upload — convert privately on you…
Convert AVIF to SVG Free Free AVIF to SVG converter in your browser. No upload — convert privately on you…
Free SVG to PNG converter Free SVG to PNG converter in your browser. No upload — convert privately on your…
Convert SVG to JPEG Free Free SVG to JPEG converter in your browser. No upload — convert privately on you…
Free SVG to WebP converter Free SVG to WebP converter in your browser. No upload — convert privately on you…
Convert SVG to AVIF Free Free SVG to AVIF converter in your browser. No upload — convert privately on you…
Free SVG to JPG converter Free SVG to JPG converter in your browser. No upload — convert privately on your…
PDF Tools
Merge, split, compress, and convert PDF files effortlessly.
PDF Merger Merge multiple PDF files into one document using pdf-lib, entirely in your brows…
Popular PDF Splitter Split a PDF into multiple files by page ranges. Page count is read locally first…
Popular Multipage PDF to Image Convert every page of a PDF to high-resolution images in your browser. PDF.js re…
Popular Markdown to PDF & DOCX Convert Markdown to styled PDF and Word documents: themes, table of contents, sy…
PopularText Tools
Analyze, transform, and format text for any purpose.
Character Counter Count characters instantly with optimized limits for SMS and Twitter/X.…
Popular Word Counter Count words, characters, sentences, paragraphs, and reading time instantly. Free…
Popular Text Sorter Sort lines alphabetically or by length in one click.…
Duplicate Line Remover Remove repeated lines while preserving first occurrence order.…
Reverse / Mirror Text Generate reverse and mirrored text for creativity and style.…
Text to Binary / Binary to Text Convert between plain text and binary bytes instantly.…
Upside Down Text Convert text into upside-down Unicode in normal or reversed mode.…
Upside Down Text to Normal Convert upside-down Unicode text back to normal readable text.…
Morse Code Converter Convert text to Morse code and Morse back to text.…
Palindrome Checker Check whether text is a palindrome after cleaning punctuation and spaces.…
Anagram Solver Find anagram-style matches from a built-in word list.…
Hashtag Generator Generate hashtag suggestions from your text and keyword density.…
Popular Name Combiner Combine two names into blended name ideas for couples and startups.…
Case Converter Instantly convert text to UPPERCASE, lowercase, or Title Case. Free online case …
Popular Random Text Generator Generate placeholder text and custom random snippets.…
Random Word Generator Generate random words by mood, topic, or vibe.…
Tongue Twister Generator Generate fun tongue twisters from your chosen topic.…
Instagram Caption Generator Generate Instagram captions using mood, vibe, category, and topic.…
Popular Bio Generator Generate personalized bios for social profiles and professional platforms.…
Popular WhatsApp About and Status Generator Generate WhatsApp about lines and status captions by mood/topic.…
Gaming Usernames Generator Generate gaming usernames from keywords, vibes, and style.…
YouTube Channel Name Generator Generate YouTube channel names from niche and vibe.…
Instagram Bio Font Generator Convert normal text into stylish Unicode font styles for bios.…
Popular Text to Emoji Converter Convert plain text into emoji-enhanced caption styles.…
Invisible Text Generator Generate blank/invisible Unicode text for social profiles and messages.…
Word Scrambler / Unscrambler Scramble words for games and find possible unscrambled matches.…
Word Unscrambler (Scrabble / Word Games) Find possible word matches from scrambled letters.…
Find Words From Jumbled Letters Turn scrambled letters into real dictionary words. With enough letters, discover…
Popular Crossword Helper Use pattern matching with ? wildcards to find likely words.…
Hangman (Browser Game) Play a lightweight browser hangman game.…
Word Guess (Wordle-like) Guess hidden words in a Wordle-style browser mini game.…
Wordle-style Games Play and practice word-guess patterns in a Wordle-style format.…
Stylish Unicode Font Generator Transform text into stylish Unicode font variants.…
Popular Zalgo / Glitch Text Generator Generate glitchy Zalgo-style Unicode text effects.…
Small Caps / Superscript / Subscript Generator Convert normal text to small caps, superscript, and subscript styles.…
Emoji + Symbol Text Generator Generate expressive text decorated with emoji and symbols.…
Text Cleaner / Remover Clean text by removing extra spaces, line breaks, numbers, or punctuation. Free …
Plagiarism Checker Run a fast plagiarism-style scan to detect repeated phrases and duplicate senten…
Grammar Checker Detect common grammar and style issues like repeated words, spacing, and sentenc…
Paraphraser (AI) Paraphrase text instantly with AI-style rewriting patterns to improve variation …
Popular Slug Generator Generate clean, SEO-friendly URL slugs from titles or keywords. Lowercase, hyphe…
Popular Keyword Density Checker Measure keyword frequency and density percentages in your content. Improve on-pa…
Popular Markdown Table Generator Build GitHub-flavored Markdown tables in a spreadsheet-style grid. Column alignm…
Popular Channel Growth Milestone Predictor Estimate how many days to reach a subscriber target from your current count and …
Engagement Rate Calculator Compute engagement rate as (likes + comments) ÷ views × 100 with a simple Low / …
Developer Tools
Essential utilities for developers: formatters, encoders, and more.
GitHub README Generator Build a polished README from a form: features, install steps, usage, screenshots…
Popular Number Base Converter (Decimal/Binary/Hex) Convert integers between decimal, binary, octal, and hexadecimal instantly for p…
Popular JSON Formatter Format, validate, and minify JSON instantly. Syntax highlighting, error detectio…
Popular Markdown Formatter Clean and standardize Markdown in your browser: fix spacing, headings, lists, fe…
Popular JSON to Struct Converter Convert JSON into typed structs/interfaces for Rust (Serde), Go, TypeScript, and…
Popular CSV to JSON Converter Convert CSV rows into formatted JSON arrays instantly. Great for API payload pre…
Popular JSON Diff Checker Compare two JSON documents and inspect added, removed, and changed paths with st…
Popular XML to JSON Converter Convert XML documents into structured JSON output instantly. Useful for API inte…
Popular XML Validator & Formatter Validate XML syntax and auto-format it into readable, indented output for faster…
Popular YAML Validator & Formatter Validate YAML syntax and format it into clean, consistent indentation for config…
Popular YAML to JSON Converter Convert YAML documents into formatted JSON output instantly for APIs, scripts, a…
Popular JSON to YAML Converter Convert JSON into readable YAML for infrastructure files, CI pipelines, and conf…
Popular SQL to TypeScript Interface Convert SQL CREATE TABLE statements into TypeScript interfaces. Keep frontend mo…
Popular Bcrypt & Argon2 Tester Test and verify bcrypt or argon2 hash formats locally. Validate password hash be…
JWT Debugger Decode JWT header and payload locally in your browser. Inspect exp/iat claims an…
Popular Docker Compose & Kubernetes YAML Builder Generate clean Docker Compose and Kubernetes YAML using a simple form. Great for…
chmod Calculator Visual chmod calculator for Linux file permissions. Toggle read/write/execute an…
Popular Log Parser Paste raw logs and instantly highlight errors, warnings, timestamps, and stack t…
Popular Base64 Encoder / Decoder Encode plain text to Base64 and decode Base64 back to text instantly. Useful for…
Popular Regex Tester Test regular expressions against sample text with live match positions and flag …
Popular HTML Minifier Minify HTML by stripping comments and unnecessary whitespace for smaller payload…
HTML to Markdown Converter Convert HTML to clean Markdown in your browser. Paste HTML or fetch a page, stri…
Popular CSS Beautifier Beautify messy CSS into clean, readable, and properly indented styles for easier…
JWT Decoder Decode JWT header and payload claims instantly in-browser without sending tokens…
Popular API Tester (Basic) Send basic API requests with method, URL, headers, and body. Inspect status, res…
Popular Password Generator Generate strong random passwords with configurable length and character sets. Cl…
Popular UUID Generator Generate RFC 4122 version 4 UUIDs instantly for databases, APIs, and request tra…
QR Code Generator Create QR codes for links, text, and contact details instantly. Download generat…
Barcode Generator Generate clean CODE128 barcodes for labels, inventory, and product workflows dir…
Hash Generator Generate text hashes using MD5 and SHA algorithms instantly for checksums, integ…
Popular Encryption & Decryption Tool Encrypt and decrypt text with password-based AES-GCM in your browser. Useful for…
Popular Color Picker (HEX/RGB) Convert colors between HEX and RGB, preview swatches instantly, and copy accurat…
Popular Gradient Generator Generate smooth color gradients between any two HEX colors with customizable sto…
Popular Palette Generator Generate balanced color palettes from a base color using analogous, complementar…
Popular Contrast Checker Check foreground and background color contrast ratio against WCAG AA and AAA acc…
Popular Image Color Extractor Upload an image and extract dominant color swatches with percentage distribution…
Popular Data Storage Converter Convert a value to total bytes using binary 1024 multiples.…
Cron Expression Descriptor Describe common five-field cron patterns in simple phrases.…
SEO Tools
Optimize your website for search engines and social media.
Keyword Research (Basic/Free) Generate free keyword ideas, long-tail variants, local modifiers, and intent clu…
Popular Meta Tag Generator Generate optimized title, description, Open Graph, and Twitter tags quickly with…
Popular Robots.txt Generator Generate robots.txt with allow/disallow paths and sitemap directive to control c…
Popular Sitemap Generator Create XML sitemap files from URL lists with change frequency, priority, and las…
Popular Sitemap Analyzer Paste a sitemap URL or XML to see whether it is a page list or sitemap index, ho…
Page Speed Checker (Lite) Run a lightweight page speed and on-page SEO check for TTFB, payload size, image…
Backlink Checker (Limited) Check whether candidate source pages link to your target URL. Detect nofollow an…
Redirect Checker Trace full HTTP redirect chains from any public URL: status codes per hop, final…
Schema SEO Validator (JSON-LD) Scan a URL or pasted JSON-LD: validate syntax, Schema.org shapes, and Product / …
PopularFinance Tools
Tax, savings, and financial planning calculators for India and global users.
Smart Regime Optimizer Compare old and new Indian tax regimes side-by-side using salary and deductions.…
Popular GST & HSN Calculator Search HSN, SAC, or any columns from an administrator-uploaded CSV or Excel cata…
Popular Maturity Planner Estimate maturity value for long-term savings with annual contributions and peri…
Popular Tax Buffer Calculator Know exactly how much to set aside from every invoice for taxes. Great for freel…
Popular EMI Calculator Calculate monthly EMI for home, car, and personal loans using reducing balance f…
Popular SIP Calculator Calculate SIP maturity value from monthly investment, expected annual return, an…
Popular Income Tax Calculator Estimate your annual Indian income tax with regime selection, deductions, cess, …
Popular Loan Calculator Calculate loan repayment summary with EMI, total interest cost, and total paymen…
Popular ROI Calculator Measure investment performance with absolute ROI and annualized return (CAGR) ba…
Popular Salary Hike Calculator Calculate increment amount, revised annual salary, and new monthly salary after …
Popular Currency Converter Convert between major currencies with quick rate-based calculations. Great for t…
Popular FIRE Calculator Estimate your FIRE target corpus using safe withdrawal rate and annual expenses.…
Popular GPA Calculator Calculate GPA quickly using total grade points and total credits with a simple o…
Percentage Calculator Calculate percentages instantly by entering part and whole values.…
Equation Solver Solve linear and quadratic equations instantly with step-ready outputs.…
Unit Converter (Physics/Math) Convert pressure, length, temperature, mass, and volume units instantly in one c…
Age Calculator Calculate exact age from date of birth with years, months, days, and total days.…
Weight Converter Convert between kilograms, pounds, grams, and ounces quickly.…
Time Zone Converter Starts in your detected time zone; add cities to compare up to twelve columns—pi…
Time Zone Map Explore an interactive world map colored by current UTC offset. Hover any countr…
Random Number Generator Generate random integers between custom min and max values in one click.…
Name Generator Generate random full names for sample data, demos, and test datasets.…
Timesheet Calculator Add daily work hours and minutes to get total time instantly.…
Profit Margin Calculator Calculate revenue from base cost and target margin percentage instantly.…
Fraction Calculator Perform fraction arithmetic and get simplified results instantly.…
Triangle Calculator Calculate triangle perimeter and area using side lengths.…
Standard Deviation Calculator Calculate mean and standard deviation from a list of numbers.…
Date Calculator Calculate day differences between two dates.…
Time Calculator Add or subtract time values in HH:MM:SS format.…
Hours Calculator Calculate worked hours between start and end time with break.…
Grade Calculator Calculate exam percentage and letter grade quickly.…
Concrete Calculator Estimate concrete volume and approximate cement bags for slab dimensions.…
Subnet Calculator Analyze IPv4 CIDR in detail: subnet mask, wildcard mask, network/broadcast, host…
IPv6 Subnet Calculator Calculate IPv6 subnet network boundaries, expanded/compressed notation, address …
Popular Conversion Calculator Convert common units including pressure, length, weight, temperature, and volume…
Mortgage Calculator Estimate mortgage monthly payment and total interest.…
Auto Loan Calculator Calculate monthly car loan payment and total interest.…
Interest Calculator Compute simple interest from principal, rate, and time.…
Payment Calculator Estimate periodic payment for loans and financing.…
Retirement Calculator Project retirement corpus with monthly investments and returns.…
Amortization Calculator View monthly principal and interest amortization breakdown.…
Investment Calculator Estimate investment growth with principal, rate, and tenure.…
Inflation Calculator Adjust values for inflation to estimate present-day purchasing power.…
Finance Calculator All-purpose finance helper for payment, interest, and ROI metrics.…
Compound Interest Calculator Calculate compound interest growth over time.…
Salary Calculator Convert annual salary into monthly, weekly, and hourly pay.…
Interest Rate Calculator Estimate annual interest rate from principal, EMI, and tenure.…
Sales Tax Calculator Calculate US sales tax and total price from item amount and a tax rate.…
VAT (Value-Added Tax) Estimator Estimate VAT amount and total price given an exclusive (net) or inclusive (gross…
Proforma Invoice Generator Create professional proforma invoices online with country-specific currency and …
Popular Final Tax Invoice Generator Create final tax invoices online with country-based tax defaults and currency fo…
Popular Present Value (PV) Calculator Calculate present value from a future value using an annual interest rate and co…
Future Value (FV) Calculator Calculate future value from a present value using an annual interest rate and co…
APR (Effective) Calculator Compute effective APR from a periodic interest rate and compounding frequency.…
Credit Card Payoff Estimator Estimate payoff time, total interest, and total paid given APR and a monthly pay…
Debt Payoff Calculator Estimate months to payoff, total interest, and total paid with a base payment pl…
Auto Lease Estimator Estimate estimated monthly lease payment using MSRP, down payment, residual perc…
YouTube Revenue (Net 55%) Calculator Estimate gross ad revenue from projected views and CPM, then net creator earning…
Creator Profit After Tax (India) Estimate net creator profit as (professional fee − expenses) × 0.80 with an opti…
Home Affordability Calculator Rough max home price from income, housing ratio, debts, down payment, and mortga…
Rental Yield Calculator Annual rent divided by property value.…
Future Wealth Projector Compound future value from starting balance and monthly contributions.…
LTV (Loan-to-Value) Calculator Compute LTV percent for gold loans, mortgages, or any collateral model.…
Solar Panel ROI Calculator Estimate ROI percentage based on annual savings and project horizon.…
Online Calculator
Scientific and engineering calculator with natural expression entry, angle modes, logs, powers, memory, and Ans.
Compliance & Legal
Compliance and legal drafting helpers for privacy, consent, and business operations.
Dynamic Privacy Policy Builder Generate a custom privacy policy for websites and SaaS based on cookies, ads, ne…
Popular Terms of Service Generator Create a ToS draft for SaaS or e-commerce products with clauses for accounts, bi…
Popular Cookie Auditor Classify common scripts such as Meta Pixel and Google Analytics into cookie cons…
Popular Consent Mode v2 Tester Check if your site tags correctly pass Consent Mode v2 signals such as ad_storag…
Popular DSC Status Helper (India) Track Digital Signature Certificate metadata and expiry reminders for India comp…
Company Name Availability Checker (India) Prepare and validate candidate company names, then launch quick checks against M…
Popular India Stamp Duty Estimator Multiply consideration by your state rate to estimate stamp duty (verify current…
India Court Fee Estimator Simple flat fee plus percentage of claim value for rough planning (not official …
Injury / Death Compensation Estimator Toy model: economic damages times a multiplier plus non-economic cap for discuss…
Health & Fitness Tools
Health and fitness estimators for nutrition, metabolism, and body metrics.
Pregnancy Calculator Calculate pregnancy due date, gestational age, conception date, and key trimeste…
Popular Body Mass Index (BMI) Estimator Estimate BMI from your height and weight and get an at-a-glance health category.…
Popular Calories From Macros Calculator Estimate daily calories from macro grams using 4/4/9 nutrition rules.…
Body Fat Percentage Calculator Estimate body fat percentage using the US Navy tape-measure approach.…
Basal Metabolic Rate (BMR) Calculator Estimate your BMR using the Mifflin–St Jeor equation and get an at-rest calorie …
Popular Total Daily Energy Expenditure (TDEE) Calculator Compute estimated daily calorie burn using BMR and an activity factor.…
Popular IV Drip Rate Calculator Calculate drops per minute from ml, minutes, and drop factor.…
Drug Dosage Calculator (mg/kg) Convert a weight-based dose and concentration into ml to administer (verify with…
Creatinine Clearance (Cockcroft–Gault) Estimate CrCl from serum creatinine, age, weight, and sex.…
Water Intake Calculator Estimate daily water target from body weight using a configurable ml/kg guidelin…
Macro Target Calculator Split daily calories into protein, carb, and fat grams using 4/4/9 kcal per gram…
Daily Calorie Intake (TDEE) Calculator Estimate resting metabolism (BMR) and total daily energy (TDEE) from weight, hei…
Math Tools
Probability, statistics, and number theory calculators for everyday math.
Binomial Probability Estimator Estimate binomial probability for exactly k successes from n trials with success…
Z-Score Calculator Compute a z-score from x, mean, and standard deviation to see how far a value is…
Popular Confidence Interval Estimator Estimate a two-sided confidence interval for a mean using a Z critical value and…
Mean, Median, Mode & Range Compute mean, median, mode(s), and range from a list of numbers.…
Prime Factorization Calculator Factorize an integer into primes with exponents (e.g., 360 = 2^3 × 3^2 × 5).…
Two-Proportion Z-Test (p-value) Normal-approximation two-sided p-value for comparing two proportions.…
Linear Regression Calculator Least-squares line from comma-separated x and y lists.…
Statistical Significance (Z & Chi²) Two-sided z-test p-value for two proportions plus Pearson chi-square for a 2×2 t…
Network Tools
IP utilities, traceroute maps, and data-center planning calculators (PUE, cooling, rack heat, CFM).
What Is My IP Address Instantly view your current public IP address, ISP, city, region, country, and t…
Popular IP/URL/Website Lookup Look up an IP address, website URL, or hostname: resolve DNS, then see ISP, city…
Popular Visual Traceroute Run an MTR-style traceroute and visualize each resolved hop on an OpenStreetMap …
Popular Internet Speed Test Measure download and upload speed in an embedded browser test. Traffic goes to t…
PUE Calculator (Data Center Efficiency) Compute Power Usage Effectiveness (PUE) from IT load and total facility power, w…
Popular Cooling Load Calculator (Server Room / HVAC) Estimate sensible cooling load (kW, BTU/hr, US tons) from equipment heat, room s…
Rack Heat Load Calculator Convert server or rack electrical watts into heat rejection (BTU/hr and kW therm…
Airflow (CFM) Calculator Estimate required CFM for sensible cooling using Q ≈ 1.08 × CFM × ΔT (°F) with h…
Internet & Wi‑Fi Plan Calculator Answer questions about streaming, gaming, guests, uploads, and smart home device…
Popular Starlink Internet Plan Calculator Same usage questionnaire as our ISP planner, mapped to Starlink typical speeds, …
Popular Mobile / Cellular Plan Calculator Indicative cellular data allowance and radio generation fit from IoT telemetry t…
Popular Baud Rate to Bytes/sec Effective payload bytes per second from baud and bits per character (start/data/…
Audio Tools
Audio calculators, converters, synthesis generators, and browser-based analysis utilities.
Audio Visualizer Visualize live microphone audio with bars, waveform, radial, spectrogram, and pa…
Popular BPM to Millisecond/Sample Converter BPM to Millisecond/Sample Converter runs in your browser with local-first audio …
Frequency to Note/MIDI Converter Frequency to Note/MIDI Converter runs in your browser with local-first audio pro…
Room Mode Calculator Room Mode Calculator runs in your browser with local-first audio processing and …
RT60 Reverb Estimator RT60 Reverb Estimator runs in your browser with local-first audio processing and…
Inverse Square Law Calculator Inverse Square Law Calculator runs in your browser with local-first audio proces…
Audio Data Rate Calculator Audio Data Rate Calculator runs in your browser with local-first audio processin…
Pitch Shift vs Tempo Matcher Pitch Shift vs Tempo Matcher runs in your browser with local-first audio process…
Ohm’s Law for Speakers Ohm’s Law for Speakers runs in your browser with local-first audio processing an…
Digital Audio Peak to RMS Converter Digital Audio Peak to RMS Converter runs in your browser with local-first audio …
Wavelength Calculator Wavelength Calculator runs in your browser with local-first audio processing and…
Decibel (dB) Unit Converter Decibel (dB) Unit Converter runs in your browser with local-first audio processi…
Sample Rate/Bit Depth File Size Estimator Sample Rate/Bit Depth File Size Estimator runs in your browser with local-first …
Harmonic Series Generator Harmonic Series Generator runs in your browser with local-first audio processing…
Audio Format Converter Audio Format Converter runs in your browser with local-first audio processing an…
Audio Bitrate Changer Audio Bitrate Changer runs in your browser with local-first audio processing and…
Stereo to Mono Converter Stereo to Mono Converter runs in your browser with local-first audio processing …
Sample Rate Converter Sample Rate Converter runs in your browser with local-first audio processing and…
Audio to Image Waveform Generator Audio to Image Waveform Generator runs in your browser with local-first audio pr…
Audio Trimmer/Cutter Audio Trimmer/Cutter runs in your browser with local-first audio processing and …
Volume Booster/Normalizer Volume Booster/Normalizer runs in your browser with local-first audio processing…
Pitch & Speed Changer Pitch & Speed Changer runs in your browser with local-first audio processing and…
Reverse Audio Reverse Audio runs in your browser with local-first audio processing and no serv…
Tone/Frequency Generator Tone/Frequency Generator runs in your browser with local-first audio processing …
Noise Generator Noise Generator runs in your browser with local-first audio processing and no se…
Binaural Beat Generator Binaural Beat Generator runs in your browser with local-first audio processing a…
Metronome Metronome runs in your browser with local-first audio processing and no server u…
Spectrogram Spectrogram runs in your browser with local-first audio processing and no server…
Morse Code Audio Generator Morse Code Audio Generator runs in your browser with local-first audio processin…
Text-to-Speech (TTS) Text-to-Speech (TTS) runs in your browser with local-first audio processing and …
Silence Remover Silence Remover runs in your browser with local-first audio processing and no se…
Air Absorption & Humidity Loss Air Absorption & Humidity Loss runs in your browser with local-first audio proce…
LUFS to dBFS Headroom Calculator LUFS to dBFS Headroom Calculator runs in your browser with local-first audio pro…
Speaker Sensitivity & SPL Calculator Speaker Sensitivity & SPL Calculator runs in your browser with local-first audio…
Digital Aliasing Frequency Finder Digital Aliasing Frequency Finder runs in your browser with local-first audio pr…
Comb Filter Frequency Calculator Comb Filter Frequency Calculator runs in your browser with local-first audio pro…
Audio Buffer Latency Calculator Audio Buffer Latency Calculator runs in your browser with local-first audio proc…
Hearing Safety Time to Damage Tool Hearing Safety Time to Damage Tool runs in your browser with local-first audio p…
Binary/Hex to Audio (Data Sonification) Binary/Hex to Audio (Data Sonification) runs in your browser with local-first au…
Script-to-Video Timer Script-to-Video Timer runs in your browser with local-first audio processing and…
Video Bitrate & File Size Calculator Video Bitrate & File Size Calculator runs in your browser with local-first audio…
Edit-Sync (Frame to ms) Converter Edit-Sync (Frame to ms) Converter runs in your browser with local-first audio pr…
Practical Life Tools
Everyday household and practical planning calculators for day-to-day life.
Science & Weather Tools
Electricity, weather, psychrometrics (wet bulb / dew point / heat index), cooling towers, AQI, and a simple carbon footprint.
Ohm's Law Solver Solve Ohm's law for voltage, current, or resistance using V = I * R.…
Resistor Network Calculator (Series/Parallel) Compute equivalent resistance for two resistors in series or parallel.…
Voltage Drop Estimator Estimate voltage drop using a simplified Vdrop = I * (R_per_unit * length) model…
Wind Chill Calculator Estimate wind chill (F and C) from temperature and wind speed.…
Heat Index Calculator Estimate heat index from temperature and relative humidity.…
Dew Point Calculator Estimate dew point from temperature and relative humidity.…
Wet Bulb / Dry Bulb & Psychrometrics From temperature and humidity: wet bulb (Stull 2011), dew point (Magnus), and he…
Popular Cooling Tower Efficiency Calculator Compute thermal range, approach to wet bulb, and tower effectiveness from hot wa…
AQI Calculator (PM2.5, PM10, NO₂, O₃) Estimate US AQI sub-indices from pollutant concentrations and overall AQI as the…
Popular Carbon Footprint Calculator Estimate annual CO2e from car, flights, home electricity (grid presets), diet ba…
Energy Density Comparator Compare gravimetric energy density (Wh/kg) for batteries, diesel, petrol, coal, …
Popular Half-Life Decay Calculator Compute remaining fraction after time t given half-life.…
Molarity & Dilution Calculator Moles per litre and dilution helper.…
pH Calculator pH from [H+] or buffer ratio with pKa.…
Reaction Yield Calculator Calculate percentage yield from actual product and theoretical yield.…
Normality (N) from Molarity Convert molarity (mol/L) to normality (eq/L) using the active n-factor.…
Dilution Calculator (M₁V₁ = M₂V₂) Solve missing concentration or volume in a dilution (ideal solution, same units)…
Photography Tools
Interactive calculators for exposure, cinema workflow, pricing, print planning, and metadata privacy.
Diffraction Limit Calculator Estimate airy disk size and the aperture range where diffraction softness starts…
Bellows Extension Factor Calculate exposure compensation in stops for macro bellows or extension tubes fr…
T-Stop vs F-Stop Converter Convert between f-stop and t-stop using transmission percentage for cinema and v…
GST Photography Invoice Generator Split creative fees and production expenses, then compute GST and invoice totals…
Equipment Depreciation Tracker Track annual book value of cameras and lenses using straight-line or reducing ba…
Day-Rate vs Deliverable Calculator Compare freelancer profitability between day-rate and per-deliverable pricing wi…
Metadata (EXIF) Viewer & Scrubber Inspect common EXIF fields like camera, lens, ISO, and GPS, then export a metada…
DPI-to-Pixel Print Guide Calculate required pixel dimensions and megapixels from print size and viewing d…
Vertical Framing Safe-Zone Guide Compute top, bottom, and side safe areas for vertical videos so captions and sub…
Time-Lapse Storage Calculator Estimate frame count, output clip duration, and storage needed from capture inte…
Aspect Ratio Dimension Finder Keep the same aspect ratio when resizing: enter source width and height plus a n…
Camera Horizontal FOV Calculator Estimate horizontal field of view in degrees from focal length (mm) and sensor w…
Specialty Calculators
Long-tail calculators: construction, electrical, medical, HR, games, hobbies, commerce, and niche converters.
Steel Weight Calculator Estimate steel mass (kg) for round bar or rebar from diameter in mm and length i…
Stair Pitch Calculator Compute stair angle, percent grade, and 2R+T comfort check from rise and run.…
Tile & Paint Estimator Rough tile counts and paint volume from room dimensions and coverage assumptions…
HVAC Load Estimator Order-of-magnitude cooling tons from conditioned floor area and load factor.…
Pipe Flow / Head Loss Calculator Estimate velocity, Reynolds number, friction factor, and head loss for water in …
Cable Size Calculator Suggest copper cross-section from amperes and assumed A/mm².…
Battery Backup Calculator Estimate runtime hours from battery Ah, voltage, depth of discharge, and inverte…
Solar Panel Sizing Calculator Rough DC kW from monthly consumption, peak sun hours, and offset fraction.…
Power Factor Correction Calculator Compute required kVAR to move from an initial power factor to a target power fac…
Clinical Trial Sample Size (Two Proportions) Approximate per-group sample size to compare two proportions with alpha and powe…
Notice & Severance Calculator Estimate severance as weekly pay times years times weeks-per-year factor.…
Salary Breakup (CTC → In-Hand) Rough annual in-hand from illustrative basic/HRA splits and PF on basic.…
Notice Period Buyout Calculator Estimate buyout cost as gross monthly salary times notice months owed.…
Overtime Pay Calculator Compute overtime wages from regular hourly rate, multiplier, and OT hours.…
Productivity Rate Calculator Divide completed units by hours worked for a simple throughput rate.…
Meeting Cost Calculator Estimate the loaded cost of a meeting from headcount, blended hourly rate, and h…
India PF & Gratuity Calculator Employee PF on PF wage and gratuity using (15/26)×salary×years illustration.…
India HRA Exemption Calculator Compute the minimum of actual HRA, rent minus 10% salary, and metro/non-metro pe…
NPS Corpus Calculator Project corpus with monthly contributions and assumed annual return.…
US 401(k) Growth Calculator Future value with employee deferrals plus employer match capped by salary.…
US Social Security Toy Estimator Illustrative primary insurance amount from AIME using simplified bend-point coef…
UAE End-of-Service Benefit Calculator Illustrative EOS days × daily wage using a simplified tenure ladder.…
Game XP / Level Calculator Estimate XP to reach a level using a configurable quadratic curve.…
Damage / DPS Calculator Multiply damage per hit by attacks per second.…
Loot Probability Calculator Probability of at least k successes in n independent trials with drop chance p.…
Minecraft Planks from Logs Vanilla crafting: one log crafts to four planks in a crafting grid.…
Clash of Clans Upgrade Cost (Toy) Non-official exponential placeholder for discussion; real costs use Supercell ta…
Wedding Budget Split Calculator Allocate a total budget across venue, catering, attire, and misc by percentage.…
Trip Cost Per Person Divide total trip spend by number of people.…
Quilting Fabric Yardage Calculator Approximate continuous yardage from patch counts, patch size, and fabric width.…
Knitting Stitch Count Calculator Total stitch count for rectangular fabric.…
Aquarium Stocking (Inches per Gallon) Toy rule-of-thumb only; species behavior matters more than length alone.…
Coffee Brew Ratio Calculator Water mass from coffee dose and ratio (e.g. 1:16).…
Homebrew ABV Calculator Standard ABV estimate using original and final gravity.…
Guitar String Tension Calculator Estimate tension in newtons from vibrating length, note frequency, and mass per …
Fuel Trip Cost Calculator Trip fuel cost from economy, distance, and price per litre.…
Fuel Economy Calculator Convert distance and fuel used into litres per 100 km.…
EV Charging Cost Calculator Multiply energy delivered by price per kWh.…
Tire Overall Diameter Calculator Approximate overall tire diameter in inches from tire size notation.…
Property Tax Calculator Annual tax as assessed value times mills per thousand.…
Shopify Order Profit Calculator Simple per-order profit after payment processing percent.…
Amazon FBA Fee Estimator Rough referral and FBA pick/pack style fee model.…
Shipping Cost Estimator Linear shipping model for back-of-envelope quotes.…
Stacked Discount Calculator Apply multiple percent discounts in sequence to an initial price.…
Conversion Rate Calculator Classic marketing conversion rate.…
Test Grade Calculator Calculate test percentage and letter grade from total questions, correct answers…
Income Calculator Estimate monthly and yearly gross and net income from working hours, working wee…
Annual Salary to Hourly Wage Calculator Convert annual salary into hourly, daily, weekly, bi-weekly, and monthly wage es…
Calorie Deficit Calculator Estimate the calorie deficit required to reach a lower target weight by a chosen…
Love Compatibility (Fun) Deterministic pseudo score from two names (not scientific).…
Personality Trait Score (0–100) Map five 1–5 trait sliders to a simple 0–100 display score.…
Life Expectancy Estimator (Toy) Highly simplified lifestyle-adjusted age band for discussion only.…
PCB Trace Width Calculator Approximate copper trace width for current and temperature rise.…
555 Timer Calculator Classic 555 timing formulas for R and C values.…
Hammer / Source Units Converter Convert Source engine map units to real-world meters (default 39.37 units/m if 1…
Stepper Motor Max Speed Estimator Order-of-magnitude steps per second limit from supply voltage and motor constant…
Horse Hands to Meters One hand equals four inches; convert to meters.…
Milk Fat & SNF Payout Index Illustrative payout index from fat %, SNF %, and configurable rupees per 0.1% ra…
Livestock Gestation Calculator Add species-typical gestation days to service date.…
Gematria Calculator Sum letter values for simple English A1Z26, Hebrew, and Greek systems.…
Roman Numeral Chronogram Helper Convert a year to Roman numerals and a Latin-style summary line.…
Ligne to mm Converter Convert Paris ligne (line) to mm using ~2.2558 mm per ligne.…
Numerology Life Path Number Digital root of all digits in an ISO birth date (entertainment numerology).…
Light-Nanosecond Distance Vacuum distance for one nanosecond of light travel (~0.3 m).…
Resistive Voltage Drop Helper Simple Ohmic drop when you already know loop resistance.…
API Gravity Calculator Compute petroleum API gravity from specific gravity.…
Octane Blending Calculator Blend two fuel streams and estimate resulting octane rating.…
Gas Compressibility Z-Factor Calculator Estimate compressibility factor Z using measured P, V, n, and T.…
Enzyme Kinetics (Michaelis-Menten) Compute enzyme reaction velocity using Michaelis-Menten kinetics.…
Chromatography Retention Time Predictor Estimate analyte retention time from dead time and retention factor.…
Wind Turbine Output Calculator Estimate electrical output from wind speed, rotor diameter, and efficiencies.…
Radiation Shielding Calculator Compute transmitted intensity through shielding using I=I0e^(-mu x).…
Hydrogen Fuel Cell Efficiency Calculator Estimate fuel cell efficiency percentage from output and hydrogen energy input.…
Depth of Field Calculator Approximate depth of field from focal length, f-number, subject distance, and Co…
Exposure Calculator (EV100) Compute EV at ISO 100 from aperture and shutter speed.…
Crop Factor Focal Length Converter Convert actual focal length to full-frame equivalent using crop factor.…
Cinematic Lighting Ratio Calculator Compute key/fill lighting ratio for portrait and cinematic setups.…
Frame Rate vs Shutter Angle Calculator Get shutter time from frame rate and shutter angle settings.…
Fabric GSM Calculator Compute GSM from sample mass and dimensions.…
Yarn Count Converter (Tex/Denier) Convert yarn linear density between tex and denier.…
Fabric Shrinkage Calculator Calculate shrinkage percentage from pre/post dimensions.…
OEE Calculator Calculate OEE from availability, performance, and quality percentages.…
Cycle Time Calculator Compute cycle time from runtime and units produced.…
Production Capacity Calculator Estimate unit capacity from available hours and cycle time.…
Cost Per Unit Calculator Calculate unit cost from fixed costs, variable cost per unit, and production qua…
Ballistic Trajectory Calculator Estimate projectile range from muzzle velocity and launch angle.…
Radar Range Calculator Estimate monostatic radar detection range from system parameters.…
Fertilizer Calculator Compute fertilizer requirement from hectares and dosage.…
Irrigation Water Requirement Calculator Estimate irrigation water volume in cubic meters.…
Ore Grade Calculator Calculate ore grade percentage from metal and ore mass.…
Strip Ratio Calculator Compute strip ratio from waste and ore volumes.…
Haul Truck Cycle Time Calculator Estimate total haul truck cycle time per trip.…
Knitting Gauge Calculator Compute stitches and rows per 10 cm from a measured swatch.…
MPG & Mileage Converter Convert between litres per 100 km, US miles per gallon, and kilometres per litre…
Tire Size Comparison Compare two tire sizes and see overall diameter and percent difference.…
Minecraft Crafting Calculator Bulk vanilla crafting math from oak-style logs through planks to sticks, craftin…
Tarot Year Card Calculator Entertainment: reduce month + day + year to a Rider–Waite–style major arcana ind…
Notice Period Pay Calculator Estimate gross pay for a notice period using annual salary and calendar days.…
Time Tracking Hours Calculator Add comma-separated hours (decimals allowed) for timesheets and billing.…
Distillation Cut Point Estimator Midpoint cut temperature from initial and final boiling points.…
Nuclear Decay Chain (Two-Step) Parent fraction and daughter B/A₀ for sequential first-order decay.…
Reactor Criticality Toy Estimator Illustrative k_eff for education only (not reactor design).…
Blast Radius Estimator (Toy) Toy hazard radius from TNT-equivalent mass; calibrate K to your reference.…
Armor Penetration Toy Estimator Order-of-magnitude mm from mass, velocity, caliber, and calibration.…
Signal / Jamming Range (Friis) One-way range when received power equals sensitivity (free space).…
Resistor Color Code (4-band) Decode resistance from two digit indices (0–9) and multiplier index (education a…
LED Series Resistor Calculator Current-limiting resistor for a series LED.…
MCU Timer Overflow Calculator Overflow frequency from clock, prescaler, and ARR (STM32-style).…
Logic Gate Simplification (3 vars) Simplify sum-of-products from a list of minterms (A,B,C).…
ADC / DAC Resolution Volts per LSB from Vref and bits; ENOB from SNR (dB).…
Film Budget Estimator Split total budget by percentage across common buckets.…
LUT Sample — Log to Linear Power-law log-to-linear preview (not a full 3D LUT).…
Hair Color Mixing Ratio Volume fraction when mixing two components.…
Skin Undertone Analyzer (Toy) Toy warm/cool score (not dermatology).…
Salon Pricing Calculator Service total from base, minutes, rate, and materials.…
Cosmetic Oil/Water Split Illustrative water vs oil phase % from oil fraction.…
Hair Bleach Level Estimator (Toy) Illustrative result level from starting level and 20/30/40 vol (not professional…
Nail Polish Ratio Percent split from part counts.…
Stitch / Seam Allowance Perimeter × stitches/mm after adding seam allowance on four sides.…
Fabric Consumption Total area from piece count and rectangle cm.…
Dyeing Chemical Mass Chemical mass from liquor ratio L/kg, fabric kg, and g/L.…
Wood Volume (m³) Rectangular solid volume in cubic metres.…
Cut List (1D Greedy) Greedy count of equal stock lengths for part list + kerf.…
Board Feet BF from thickness and width (in) and length (ft).…
Dovetail Angle Degrees from slope ratio (e.g. 1:6).…
Cabinet Face Frame LF Rough LF from opening widths and stile width.…
Saw Blade SFPM Blade surface feet per minute.…
Crop Yield Estimator Total harvest mass from area and yield rate.…
Soil Nutrient Deficit Simple one-nutrient planning deficit.…
Livestock Concentrate from DM Concentrate portion from total dry matter and concentrate percentage.…
Greenhouse Heat Loss Steady-state watts from U-value, area, and delta T.…
Mining Cost per Tonne Blended cost per tonne from three pools and tonnes.…
Powder Factor Explosive mass divided by blasted rock volume.…
Rock Fragmentation (Toy) Order-of-magnitude mean size from powder factor.…
Fleet Fuel Litres Total litres for identical vehicles and distance.…
Focal Length mm ↔ in Convert focal length between millimetres and inches.…
Equivalent Shutter (ISO & f) Shutter time to match exposure when ISO and aperture change.…
Waist–Hip Ratio Simple anthropometric ratio (information only).…
Gold Price by Weight & Karat Estimate intrinsic gold value from gross weight, karat, and 24k spot per gram.…
Gold Making Charges Calculator Total jewellery price from metal value, percentage making, and flat charges.…
Gold Karat ↔ Purity Converter Convert between karat (0–24) and fineness percentage.…
Jewellery Resale / Scrap Value Rough buy-back from metal spot value and buyer percentage.…
Gold Loan Eligibility Calculator Maximum loan from appraised gold value and loan-to-value cap.…
Hallmark / Assay Mismatch Estimator Compare measured fineness to expected purity from claimed karat.…
Jewellery Wastage Calculator Extra gold grams from jeweller wastage percentage.…
Bullion Spot vs Futures Carry Simple annualized % from spot vs deferred price and months.…
Diamond Price (4Cs Toy Model) Order-of-magnitude USD toy from quality multipliers and carat weight.…
Platinum vs Gold ROI Compare ending values from assumed annual returns over years.…
Stone Setting Cost Estimator Total labour estimate for stone setting.…
Battery Ah ↔ Wh Converter Convert between Ah and Wh at a nominal DC voltage.…
Battery Charging Time Calculator Hours to restore energy at constant charger power.…
Battery Life Estimator (Cycles) Years to reach rated equivalent full cycles at your usage rate.…
Solar Battery Bank Sizing Nominal pack kWh from daily load, backup days, DoD, and RTE.…
Li-Ion Battery Degradation Linear model to 80% at rated EFC count.…
Depth of Discharge (DoD) Calculator Usable energy after applying depth of discharge limit.…
Battery C-Rate Calculator Relate discharge current to nominal capacity.…
Battery Pack Series / Parallel Nominal pack V, Ah, and Wh from cell count and cell specs.…
Internal Resistance Calculator DC internal resistance from loaded voltage sag and current.…
EV Range Estimator (Energy) Range km from usable pack energy and consumption.…
Peukert’s Law Calculator (Lead-Acid) Effective capacity and hours at discharge current using Peukert exponent.…
Thermal Runaway Risk (Toy Score) Heuristic 0–100 score for education only — not a safety certificate.…
Personal Carbon Footprint Rough annual kg CO2e sum from common activity inputs.…
Car Emissions — Fuel vs EV Compare gasoline trip emissions to grid-powered EV for the same distance.…
Flight Carbon Calculator Passenger flight emissions with optional RF multiplier.…
Electricity Emissions Calculator kg CO2e from consumption and grid intensity factor.…
Household Carbon Footprint Annual toy estimate from electricity, gas, and car use.…
Manufacturing Carbon Footprint Emissions from production volume, kWh/unit, and material factor.…
Scope 1, 2, 3 Emissions Calculator Add scope tonnes (t CO2e) for a quick total in kilograms.…
Supply Chain Emissions Estimator kg CO2e from procurement spend and kg per currency unit factor.…
Office Carbon Footprint Toy annual emissions from office energy and commuting intensity.…
Data Center Emissions Calculator Energy-related emissions from IT load, PUE, and time window.…
Cloud Carbon Footprint Illustrative cloud workload emissions from vCPU-hours and factor.…
Livestock Methane (CH₄ → CO2e) Convert enteric CH4 mass to CO2e using GWP100 (default 28).…
Fertilizer Emissions Calculator Toy emissions from nitrogen applied and blended kg CO2e per kg N.…
Crop Lifecycle Carbon Calculator Annual field emissions proxy from area and kg CO2e/ha-year.…
Shipping Emissions Calculator kg CO2e from mass, distance, and transport intensity (user factor).…
Fleet Fuel → CO2e Convert aggregated fleet fuel to approximate CO2e; optimize by reducing litres.…
Last-Mile Delivery Carbon Delivery van emissions toy from stop count and average km.…
Cement Carbon Calculator Embodied emissions from cement quantity and default intensity.…
Building Lifecycle Emissions Toy sum of embodied per m² and operational electricity over years.…
Carbon Sequestration (Trees) Very rough annual CO2 mass sequestered from tree count and factor.…
Renewable Energy Offset kg CO2e potentially offset by clean generation and grid intensity.…
Carbon Credit Valuation Market-style value from credit tonnes and price per tonne CO2e.…
Net-Zero Pathway (Linear Abatement) Simple years to close emissions gap at constant annual reduction.…
Event Carbon Footprint Rough event emissions from attendees, travel, hotel nights, and venue kWh.…
Sun / UV Exposure Estimator Illustrative UV index, sunburn band, and vitamin D discussion from latitude, tim…
Ionizing Radiation Dose Estimator Rough effective dose from air travel, imaging, space, and occupational inputs. U…
Alcohol Units & Liver Load Estimator UK-style units per week, illustrative risk band, and toy liver stress score from…
Cancer Relative Risk (Multi-Factor) Pack-years and coarse multipliers for smoking, second-hand smoke, pollution, rad…
Physical Activity & Lifestyle Estimator PAL from desk vs labor job, optional steps, MET-based exercise, Mifflin–St Jeor …
Optical Link Budget Calculator Calculate fibre link loss from distance, attenuation, splices, and connectors; g…
Optical Power Converter (dBm, mW, uW) Convert optical power between dBm, mW, and uW with quick GPON/EPON presets and p…
Fibre Attenuation Calculator Estimate fibre loss over distance for 1310 nm and 1550 nm with SMF and MMF prese…
FTTH Splitter Planning Tool (GPON/EPON) Model FTTH splitter scenarios for 1:8, 1:16, 1:32, 1:64 and estimate ONT receive…
Fibre Core Capacity Planner Plan fibre core count and OLT ports from user volume, per-user bandwidth, split …
Optical Network Topology Cost Estimator Estimate network fibre length and rough CAPEX from area size, user density, drop…
Chromatic Dispersion Calculator Calculate pulse broadening from wavelength, fibre type, spectral width, and dist…
Optical SNR / OSNR Calculator Compute OSNR from signal and noise power levels for DWDM-style optical channel q…
Wavelength to Frequency Converter Convert wavelength in nm and frequency in THz and apply common DWDM channel spac…
Fibre Bend Radius Calculator Estimate recommended fibre bend radius based on cable type, diameter, and instal…
Temperature vs Loss Estimator Estimate additional optical link loss caused by elevated outdoor temperatures us…
Connector Compatibility Tool Check compatibility across common optical connector types and polish styles incl…
SFP Compatibility Checker Check SFP compatibility by switch/router brand, model, and speed. Includes third…
SFP Distance & Power Budget Calculator Estimate whether an SFP link will work using SFP type, fibre type, distance, and…
SFP Type Identifier Tool Beginner-friendly selector that suggests SFP type from wavelength, distance requ…
SFP ↔ QSFP ↔ QSFP28 Converter Tool Convert and visualize port/lane breakouts like 1x QSFP28 (100G) to 4x SFP28 (25G…
Wavelength & Fibre Matching Tool Check whether selected SFP wavelength and fibre type are compatible and view exp…
SFP Power Level Analyzer Analyze measured RX power and classify as too weak, optimal, or too strong with …
SFP Diagnostic Decoder Paste switch optic diagnostics and get interpreted health status, warnings, and …
SFP Vendor Code / EEPROM Decoder Decode vendor and capability details from SFP EEPROM-like text for lab testing, …
Which SFP Do I Need? Smart Wizard Answer distance, fibre type, speed, and budget to get exact SFP recommendations,…
DNA → RNA → Protein Translator Translate DNA sequences into mRNA and amino-acid chains with frame shift options…
Reverse Complement Generator Generate reverse complement DNA strand and view sequence length, GC percentage, …
GC Content Calculator Calculate GC percentage and estimate DNA melting temperature (Tm) for PCR and st…
Codon Usage Analyzer Analyze codon usage and compare preference score against E. coli, S. cerevisiae,…
Bacterial Growth Calculator Estimate final bacterial population from initial count, doubling time, and durat…
CFU Calculator Compute colony forming units per ml from plate counts, dilution factor, and plat…
Antibiotic MIC Estimator Estimate effective concentration from MIC and safety multiplier. Educational use…
PCR Calculator Calculate reagent volumes for PCR setup from stock concentrations, target concen…
Serial Dilution Calculator Generate step-by-step serial dilution concentration table from starting concentr…
Molarity & Solution Prep Calculator Convert mg to moles, moles to mg, and molarity to volume for chemistry and biote…
Punnett Square Generator Build a monohybrid Punnett square and compute offspring genotype probabilities w…
Hardy-Weinberg Calculator Calculate expected genotype frequencies under Hardy-Weinberg assumptions from al…
Sequence Alignment Tool (Basic) Compare two DNA sequences and compute matches, mismatches, and identity percenta…
Restriction Enzyme Finder Find restriction enzyme recognition sites in DNA with quick presets for common e…
ORF Finder Identify open reading frames from DNA sequence with reading frame and coding-len…
Viral Load Growth Estimator Estimate viral load progression with an educational exponential model from initi…
Mutation Impact Predictor (Basic) Estimate mutation difference percentage between reference and observed sequence …
Incubation Period Estimator Estimate expected incubation midpoint from minimum and maximum day range for edu…
Clinical Trial Sample Size Calculator Estimate required per-arm sample size from alpha, power, effect size, and varian…
Clinical Randomization Generator Generate reproducible randomization lists with simple or block randomization and…
Study Design Selector Get a recommended study design based on study type, endpoint, and target populat…
Confidence Interval Calculator (Clinical) Calculate 95% confidence interval from mean, standard deviation, and sample size…
p-value Calculator (Clinical) Compute p-values with z-test or chi-square test and get significance interpretat…
Kaplan-Meier Survival Curve Generator Generate interval-wise Kaplan-Meier survival estimates from at-risk, event, and …
PK Half-Life Calculator Estimate elimination half-life from concentration measurements and elapsed time …
Weight-Based Dose Calculator Calculate mg dose and administration volume from body weight, mg/kg target, and …
AUC Calculator (PK) Estimate area under the concentration-time curve (AUC) with trapezoidal method.…
Visit Schedule Planner Build a visit schedule timeline from total study duration and visit interval set…
Patient Recruitment Estimator Estimate recruitment time from incidence pool, site capacity, and number of acti…
Dropout Rate Impact Calculator Estimate effective sample size and power impact from expected dropout rates.…
Batch Size Scaling Calculator Scale formula component quantities from lab batch size to pilot or production si…
Stability Study Planner Plan stability study conditions and checkpoints for common ICH climatic zones.…
Shelf-Life Estimator Estimate shelf-life based on first-order degradation assumptions across storage …