Image Compressor
Compress images while maintaining quality. Fast, free, and private.
Compression Settings
Drop images here or click to upload
Supports JPG, PNG, WebP, GIF • Multiple files allowed
How to Compress Images Online
Upload a JPG, PNG, or WebP image. You can drag and drop or click to browse. The tool shows the original file size so you can compare the compression saving.
Adjust the quality slider. Higher quality means larger files. For web images, 70–80% quality is usually indistinguishable from the original to the human eye at half the file size.
Compare the compressed size to the original, then download. All compression happens in your browser — your images are never uploaded to any server.
Lossy vs Lossless Compression
Permanently removes some image data to achieve smaller file sizes. The reduction in quality is usually imperceptible at 70–85% quality settings. JPG always uses lossy compression.
Reduces file size without any quality loss by removing redundant metadata and optimising how pixel data is stored. PNG uses lossless compression.
Image Format File Size Comparison
| Format | Relative Size | Transparency | Best For |
|---|---|---|---|
| PNG | Large | Yes | Logos, icons, screenshots, text overlays |
| JPG/JPEG | Small–Medium | No | Photographs, product images, backgrounds |
| WebP | Smallest | Yes | Web images — 25–35% smaller than JPG/PNG |
| AVIF | Smallest | Yes | Next-gen web images — even smaller than WebP |
| GIF | Medium | Yes (1-bit) | Simple animations only — avoid for static images |
| SVG | Tiny | Yes | Icons, logos, illustrations — infinitely scalable |
Why Image Compression Matters for Web Performance
Images typically account for 50–75% of a webpage's total transfer size. Large images slow page load times, increase bounce rates, and hurt Core Web Vitals scores (particularly Largest Contentful Paint). Google uses page speed as a ranking signal, so compressing images directly impacts SEO. For most web use cases, compressing a 2MB photo to under 200KB while keeping it visually indistinguishable is easily achievable at 75–80% quality.
Frequently Asked Questions
Common questions about Image Compressor