freeRouting is a free autorouter for printed circuit boards. It reads a Specctra design file (dsn) and writes a Specctra session file (ses). Run it on its own, or start it from the LayoutEditor, KiCad and Eagle.

FreeRouting was developed in 2004 by Alfons Wirtz. He stopped the development in 2008 and published the source code under the GPL in 2014. From 2015 FreeRouting is included in the LayoutEditor packages and is maintained by its team.

FreeRouting Features:

• There are three modes for routing traces: 90 degree, 45 degree and free angle,
• The interactive router is production stable and unsurpassed in its free angle capabilities,
• A new autorouter from version 2.0.1 on: How the Autorouter Works,
• Native application for Linux, Windows and macOS; no Java runtime,
• It is stable and ready for productive use,
• GPL licensed,
• Web Manual.