Image Compressor
Compress images online for free. Reduce file size without losing quality. Supports JPEG, PNG, and WebP — 100% client-side, your images never leave your browser.
Drop your images here
Supports JPEG, PNG, and WebP — up to 10 files
About This Tool
- 100% client-side — your images never leave your browser
- Adjustable quality slider for perfect balance between size and quality
- Compress up to 10 images at once
- Completely free with no registration or watermarks
Frequently Asked Questions
Image compression reduces file size by removing unnecessary data and optimizing encoding. Lossy compression (JPEG, WebP) slightly reduces quality for much smaller files. Lossless compression (PNG) maintains exact quality but with less size reduction.
For web images, 70-80% quality gives the best balance — files are 60-80% smaller with barely noticeable quality loss. For high-quality prints, use 90-95%. Below 50% may show visible artifacts.
Yes! All compression happens entirely in your browser using the Canvas API. Your images are never uploaded to any server — they stay on your device.
WebP offers the best compression (25-35% smaller than JPEG at same quality). JPEG is great for photos. PNG is best for graphics with transparency. Use WebP for modern web projects.
Yes, completely free with no registration, no watermarks, and no file limits.