JavaScript API for Chrome and Firefox

The swiss army knife of lossless video/audio editing

Brotli compression format

Tamper Dev is an extension that allows you to intercept and edit HTTP/HTTPS requests and responses as they happen without the need of a proxy. Works across all operating systems (including Chrome OS).

A Github Action that automatically compresses JPEGs, PNGs and WebPs in Pull Requests.

📋 Simple copying on the web, with maximum browser compatibility. (You probably don't need this anymore!)

Responsive, SVG based HAR waterfall viewer

navigator.mediaDevices.getUserMedia + MediaRecorder create WEBM files without duration metadata. This library appends missing metadata section right to the file blob.

Playground for building Web Extensions

Protect browsers from accessing untrusted websites. A browser extension for the paranoid.