Similar to LuxRender

Hexagon (software)

HSQLDB

HTML Tidy

HTTrack

Hypertable

Intelligent Input Bus

Internet/Intranet Input Method Framework

IKVM.NET

ImageJ

InfraRecorder

Initng

Interactive Ruby Shell

Ispell

JACK Audio Connection Kit

Jigdo

Kawa (Scheme implementation)

MapServer

MASSIVE (software)

Autodesk Maya

Mesa (computer graphics)

Metasequoia (software)