These are some of the standalone tools and utilities I've written.

A collection of ZZT and MegaZeux utilities for DOS

A robot debugger for MZX 2.51

A script that parallelizes pngcrush

Nectarine client for Android devices

A patch for PeerGuardian Linux to load v3 blocklists

Guess if a string is Romanized Japanese

A tool to unlock ZZT worlds

A bare minimum "censorware" program for Windows