ToplapSystems

Systems For Live Coding

Textual languages

JITLib | SuperCollider | (GraphicsSpace) - C and smalltalk based language, well developed for live coding sound synthesis and musical patterns
ChucK | Audicle | miniAudicle - Well developed, strongly timed on-the-fly language
fluxus - Scheme based, centres around game engine, primarily for VJing but has a secret synthesiser
Impromptu
redFrik
packet forth
musique littérale, built with Quoth, in turn built with Squeak
noisepattern (part of http://www.pawfal.org/Software/livenoisetools/ )
Ruby(druby,irb,rjb) | JSyn (Client-Server)
Hyperyarn
Flaxus, Toplap flash based application
SSCLib built with SuperCollider for live slow coding
Circa+Plastic
oflivecoding - Environment for live coding in javascript within the c++ openframeworks toolkit.
ixi lang - A high level live coding language built on top of SuperCollider. More info on the ixilang page.
field - A hybrid development environment for making digital art
context free music language (cfml) - a library/sublanguage for Impromptu

The Thingee + ThingeeLanguage
betablocker
Al-Jazari (refused TOPLAP approval, entering third tribunal at dynamic high court)
TOPLAPapp:an iPhone/iPod Touch live coding musical puzzle game
Text - A visual language based on Haskell