TL;DR — I built Shrinkray : a free, open-source image compressor & converter that runs **100% in your browser . No uploads, no servers, no tracking. Your images never leave your device.
Source: [Dev.to](https://dev.to/member_250fe3f1/shrinkray-a-free-100-in-browser-image-compressor-no-uploads-open-source-4fa2)