freerouting/freerouting

Health v2 · maintenance only

Adoption not part of the score

1909 stars · 314 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Freerouting is an open-source, advanced PCB auto-router that works with any EDA tool supporting the Specctra or Electra DSN interface, such as KiCad, Eagle, and EasyEDA. It imports .dsn design files, automatically routes traces with a multi-threaded rip-up-and-retry engine, and exports .ses session files back to the host EDA tool.

Use cases

• automatically route PCB traces in KiCad
• autoroute a Specctra DSN file
• replace tedious manual PCB trace placement with automated routing
• route PCBs designed in Autodesk Eagle or EasyEDA
• minimize via counts and trace lengths on a circuit board layout
• batch-route PCB designs via a routing API

When to choose

• you need automated PCB routing compatible with Specctra DSN/SES workflows
• you use KiCad, Eagle, EasyEDA, or another DSN-compatible EDA tool
• you want a free, open-source alternative to commercial autorouters
• you need multi-threaded routing optimization with configurable rules

When to avoid

• your EDA tool does not support Specctra DSN import/export
• you need full schematic capture or PCB layout editing, not just routing
• you require a commercial-grade autorouter with vendor support and guarantees

Facets

application · maturity active

gui routing graphics hardware developer-tools cross-platform windows jvm pcb autorouter eda kicad specctra-dsn electronics-design ripup-and-reroute linux macos desktop

Member repositories

For agents

markdown · JSON · MCP: product_card(name="freerouting/freerouting")