How to compress an image online
- Drop your image — JPG, PNG or WebP, up to 20 MB, batch up to 10 files.
- Adjust quality if you want — the default 75% works for almost every photo.
- Download the smaller version — one file or all of them as a ZIP.
Why CompressPix
Most "free" online image compressors upload your files to a remote server, throttle you after a handful of images, or stamp a watermark on the output. CompressPix uses your browser's built-in WebAssembly engine, so your photos never leave your device — and there are no daily limits, no signup walls and no paid tier.
At the default 75% quality setting, a 5 MB phone photo typically lands between 300 KB and 600 KB with no visible loss on screen. That's the sweet spot most photographers and web developers settle on after years of testing — small enough to keep your site fast and your emails deliverable, but high enough that nobody can tell.
Supported formats
- JPG / JPEG — best for photographs and complex images.
- PNG — best for logos, screenshots and transparent graphics.
- WebP — Google's modern format, ~30% smaller than JPG at the same quality.
EXIF metadata (including GPS coordinates embedded by your phone camera) is automatically stripped during compression, which keeps the output smaller and protects your privacy when sharing photos online.