How to compress images without losing quality

Image compression feels like a trade-off between quality and file size — but with the right technique, you can reduce file sizes by 50–80% with almost no visible difference.

Lossy vs lossless compression

Lossless compression removes redundant data without changing any pixels. PNG uses lossless compression. You can compress a PNG losslessly and get the exact same image back.

Lossy compression discards some image data — imperceptible details — to achieve much smaller files. JPG and WebP use lossy compression. At quality settings of 80–90%, the difference from the original is usually invisible.

Tips for maximum compression with minimum quality loss

1. Use the right format. WebP compresses 25–35% better than JPG or PNG at the same quality.
2. Resize before compressing. If you're displaying a 600px wide image, don't upload a 4000px version. Resize first, then compress.
3. Strip metadata. Camera photos contain EXIF data (GPS, camera model, etc.) that adds kilobytes. Remove it unless you need it.
4. Use quality 80–85%. For most photos, quality 80–85% is visually identical to the original but significantly smaller.

Try it now

[Compress JPG](/tools/compress-jpg), [Compress PNG](/tools/compress-png), or [Compress WebP](/tools/compress-webp) — all free, in your browser.