A powerful cross-platform UI toolkit for building native-quality iOS, Android, and Progressive Web Apps with HTML, CSS, and JavaScript.

Highcharts JS, the JavaScript charting framework

JavaScript/TypeScript animation engine

noUiSlider is a lightweight, ARIA-accessible JavaScript range slider with multi-touch and keyboard support. It is fully GPU animated: no reflows, so it is fast; even on older devices. It also fits …

Online editor to create and manipulate SVG paths

Slack Developer Kit for Node.js

A super-simple-small promise-based keyval store implemented with IndexedDB

Beautifier and language aware code comparison tool for many languages. It also minifies and a few other things.

Frontend for the 5calls.org site

The web version of the Inspiral app.

The calculations behind Utopia.fyi. Available in JS/TS.