About ShrinkLab

ShrinkLab is a collection of image tools that run entirely inside your browser. Instead of uploading files to a server, it uses the same graphics engine your browser uses to display web pages to decode, transform and re-encode your images on your device.

That architecture is better in every way that matters: it is faster because nothing travels over the network, it is private because nothing leaves your device, and it keeps working when you are offline.

The app is installable as a Progressive Web App, supports 28 languages, and is free to use without an account.

How it works

1. Images are decoded with the browser’s native codecs, with on-device WebAssembly decoders for HEIC and TIFF.
2. Processing happens in Web Workers so the interface stays responsive, even with large photos.
3. Encoders write JPG, PNG, WebP, AVIF, BMP and ICO. Size targets use a quality and dimension search that lands just under your limit.