Reduce file sizes dramatically while maintaining visual quality. Free, fast, and completely private.
or click to browse your files
Drag and drop any image into the compressor, or click to browse your files. Supports PNG, JPG, JPEG, and WebP formats.
Pick your desired compression level — Low, Medium, High, or Maximum. PNG files are automatically converted to WebP for optimal compression.
Your compressed image is ready immediately. Review the file size reduction, then click download to save the optimized file.
Choose the right balance between file size and visual quality. Each level is tuned for different use cases — from professional photography to quick social media posts.
Gentle compression with minimal visual impact. Ideal for professional photography and high-quality print assets where every detail matters.
Balanced compression for general use. Great for website images, blog posts, and email attachments. Imperceptible quality loss for most images.
Aggressive compression for significant size savings. Perfect for social media, messaging apps, and bandwidth-constrained scenarios.
Smallest possible file size. Best for thumbnails, previews, and situations where file size matters more than visual fidelity.
| Feature | Lossy (JPG/WebP) | Lossless (PNG) |
|---|---|---|
| Size reduction | 50-85% | 10-30% |
| Quality loss | Minimal at high quality | None |
| Transparency | WebP only | Yes |
| Best for photos | Excellent | Overkill |
| Best for graphics | Good | Excellent |
| File sizes | Very small | Larger |
| Re-compression | Degrades over time | No degradation |
Use lossy compression (JPG/WebP) at Medium or High level. Photos compress extremely well — 60-80% savings with imperceptible quality loss.
Compress will auto-convert PNG to WebP, giving you the best of both worlds — transparency support with significantly smaller files.
Use High or Maximum compression for web images. Page load speed improves dramatically with smaller images, and users rarely notice the quality difference.
Compress is engineered to be the fastest, most private image compressor available. Every compression happens on your device — no data ever leaves your browser.
sent to any server — all processing is 100% local to your browser
file size reduction while maintaining excellent visual quality
average compression time for standard images using the Canvas API
Yes, completely free with no limits. There are no premium tiers, no watermarks, no signup required, and no daily compression limits. Compress is a free tool by disposal.space.
No. Compress processes all images entirely in your browser using the HTML5 Canvas API. Your files never leave your device. There is no server-side processing — everything happens locally on your computer or phone. This makes Compress one of the most private image compressors available.
Compress supports the most popular image formats: PNG, JPG (JPEG), and WebP. PNG files are automatically converted to WebP during compression for maximum file size savings, as WebP typically produces 25-35% smaller files than PNG at equivalent visual quality.
Lossless compression reduces file size without any quality loss — the decompressed image is identical to the original. Lossy compression achieves much greater size reductions (up to 80%) by selectively discarding image data that is less perceptible to the human eye. At higher quality settings (70%+), the difference is virtually imperceptible for most images.
PNG is a lossless format that doesn't benefit much from re-compression as PNG. By converting to WebP (which supports both lossy and lossless compression), Compress can achieve dramatically better file size reductions — often 50-80% smaller — while maintaining excellent visual quality. WebP is supported by all modern browsers.
It depends on your use case. Low is best for professional photography where every detail matters. Medium is ideal for general web use and email. High works great for social media and messaging. Maximum gives the smallest files, perfect for thumbnails and previews. For most users, Medium provides the best balance.
Yes. Compress is fully responsive and works on any modern mobile browser — including Safari on iOS and Chrome on Android. You can tap to select photos from your camera roll or file manager. The interface adapts to smaller screens automatically.
Unlike TinyPNG, Compress runs entirely in your browser — your images are never uploaded to any server, so your files stay completely private. Unlike Squoosh, Compress offers a simpler, streamlined experience with preset compression levels rather than codec-level configuration. It's 100% free with no limits, no account needed, and works offline once loaded.
There's no hard file size limit since processing happens in your browser. However, very large files (over 10MB) may take longer to process depending on your device's capabilities. Compress will display a warning for large files. Most standard images compress in under a second.
Currently, Compress handles one image at a time for the best experience and quality control. After compressing one image, you can immediately start another — the process is instant. Batch compression is on our roadmap for a future update.
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