source engine

The free player with a Mathematica engine.

Swfdec is an engine that loads and runs Adobe Flash animations.

High performance transactional storage engine.

Fast and stable open-source browser.

Free, open-source office suite.

Indexes logs from any source.

Easily identify current input source.

Open-Source Markdown editor.

Open-Source implementation of Microsoft's .NET framework.

Open-source advanced mathematics software.