Reduce image file size by up to 90% in seconds. Works entirely in your browser — your images never leave your device.
Last Updated: 14 Feb 2026
Drop images here
Supports JPEG, PNG, WebP — up to 20 files
Image Compressor helps you reduce image file size by up to 90% in seconds. works entirely in your browser — your images never leave your device. It is commonly used by professionals, students, general users for image compressor, compress image online, reduce image size.
Why Image Compression Matters
Large images are one of the biggest culprits behind slow websites. A single unoptimized image can add multiple megabytes to your page weight, directly hurting your Core Web Vitals, search rankings, and user experience.
Image compression solves this by reducing file size while preserving visual quality — the best of both worlds.
How Our Image Compressor Works
Our tool uses the browser's native Canvas API combined with smart quality optimization to compress your images entirely client-side. This means:
- **Zero uploads** — your images never leave your device
- **Instant processing** — no server roundtrip latency
- **Completely private** — we see nothing
Simply drag and drop your image (JPEG, PNG, or WebP), adjust the quality slider, and download your compressed file.
Supported Formats
- **JPEG / JPG** — Best for photographs. Compression removes invisible color data.
- **PNG** — Best for graphics with transparency. We use lossy conversion for maximum savings.
- **WebP** — Google's modern format. Smallest file sizes with excellent quality.
Tips for Best Results
- **Use JPEG for photos** — quality setting of 70–80% is typically invisible to the human eye
- **Use WebP output for the web** — 25–35% smaller than equivalent JPEG
- **Batch compress** — process multiple images at once to save time
- **Check the preview** — zoom in to spot quality issues before downloading
When to Use Lossless vs Lossy Compression
Lossy compression (lower quality slider) removes some image data permanently but achieves the smallest file sizes. Ideal for web thumbnails, social media images, and anywhere bandwidth matters.
Lossless compression (higher quality slider, 90–100%) preserves all image data but still optimizes file structure. Best for source files, print materials, and images requiring perfect fidelity.