DOMPurify - a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMPurify works with a secure default, but offers a lot of configurability and hooks. Demo:

Cuckoo Sandbox is an automated dynamic malware analysis system

A framework for the HTML programming language.

Parse the Aztec code in Deutsche Bahn's train tickets

Macros I have made for FoundryVTT

Multilevel tokens for Foundry VTT

Character art module for Foundry Virtual Table top

Allows a user to setup custom CSS rules in a FoundryVTT world

A module designed to make applying and customizing themes easier for users and theme authors.

webgl-noise ported to WGSL