audio editor

Multitrack sound recorder/editor with MP3 support.

Cross-platform gettext catalogs (.po files) editor.

Lightweight, cross-platform, procedural graphics editor (was Ormr).

Music Macro Language (MML) editor.

Advanced real-time video editor.

Powerful MP4 and MP3 tag editor.

UML editor.

PDF editor built for Mac.

Minimalist Markdown editor.

A hackable text editor.