Most coding games are aimed at children. But there are also some great coding games aimed at adults who want to learn to code.

A collective list of free APIs for use in software and web development

Convert jpg image to svg

This site contains 29761 parsed manpages from sections 1 and 8 found in Ubuntu's manpage repository. A lot of heuristics were used to extract the arguments of each program, and there are errors here and there, especially in manpages that have a non-standard layout.

CSS gradient generator

Free svg background generator for your websites, blogs and app.

Prints code with color scheme by Ben Schattinger.

Create and share simple UML diagrams in your wikis, forums and issue trackers.

svpro_gnu de Samuel VERMEULEN.

Regex 101: Test regexp online.