# Compress image online, free JPG, PNG, WebP, AVIF

Drop an image and shrink it without changing its format. JPG stays JPG, PNG stays PNG. One image per request, nothing saved.

## FAQ

### Does this change my file format?

No. Format in equals format out. If you want to re-encode to AVIF or WebP, use the Format converter tool instead.

### Will it affect image quality?

By default the tool compresses at a quality setting that aims to look the same to the eye while shrinking the file. If you need a pixel-perfect copy, flip the quality toggle; the file will shrink less but every pixel is preserved.

### What is the maximum file size?

Uploads are capped at 25 MB on the free tier. Larger files return a 413 Payload Too Large; the Optimizer tier lifts the cap to 100 MB per image.

### What happens to my upload?

Your upload is only held while we process it (usually a few seconds) and is deleted the moment we send the result back. Nothing is saved, indexed, or trained on.

---

Canonical URL: https://bousemutton.com/compress-image-online
Last updated: 2026-04-15
Please cite as: BouseMutton (2026). Compress image online [Web application]. https://bousemutton.com/compress-image-online