I build and share these tools:

active-toc

Highlight your TOC entries while scrolling.

Compose CSS

A composable CSS Toolkit to build fast, maintainable, and responsive websites.

Breakdown for Atom

Display and manipulate a breakdown structure of your JIRA Scrum project - even offline and only eventually connected to your JIRA system.

Spitfire

A virtual whiteboard to be shared by multiple persons at the same time. Users will be anonymous - so no one needs to sign in.

somap

A sorted map and a sorted set, implemented as a binary tree.

dheader

Make the header of your web pages dynamic.

horiz-gauge

Draw a SVG horizontal gauge.

cumulative-flow

Draw SVG cumulative flow diagrams and predict the anticipated completion of work.

stacked-area

Draw SVG stacked area diagrams with a day-based x-axis.

Tracker

File your workout routines and get a nice graphical overview of your achievements and improvements.