Compress & convert images
without uploading

Batch compress, resize and convert images to JPEG, WebP, AVIF or PNG — all locally in your browser.

100% Local No upload No limit

Before compression

141 KB

After compression

13 KB

91% smaller

Frequently asked questions

Are my images uploaded to a server?

No. All processing happens locally in your browser using WebAssembly. Your files never leave your device.

Does compression reduce image quality?

Lossy formats (JPEG, WebP, AVIF) trade some quality for smaller size. You control the quality slider, or use target-size mode to hit a specific size.

What formats are supported?

Input: JPEG, PNG, WebP, GIF, AVIF. Output: JPEG, PNG, WebP, AVIF.

Get the Android App

Compress images right on your phone — pick from gallery, compress, and replace originals in one tap.

Download APK · v3.05 · 6.1 MB

Android only · requires Android 7.0+