Splice
CAD for cable harnesses and electrical assemblies
- Category
- Developer Tools
- Launched
- August 21, 2025
- Stage
- Unknown
- Pricing
- free
- Founder
- djsdjs
- Website
- splice-cad.com

Splice is a specialized CAD tool for designing cable harnesses and electrical assemblies. It provides an interactive SVG canvas for placing connectors, routing wires, assigning signals, and generating documentation. The tool includes a Harness Builder for drag and drop design, a Component Creator for custom parts (connectors, motors, relays, power supplies), and a Cable Creator for defining multi core cables with conductor properties. It automatically generates bills of materials (BOMs) and supports export to SVG, PNG, and PDF. Splice also offers version control, a parts database with fuzzy search, and an expanding library of connectors from manufacturers like JST, Molex, Samtec, and TE Connectivity.
Discovered via
- Hacker News Show HN · · Show HN: Splice – CAD for Cable Harnesses and Electrical Assemblies