Splice CAD
Splice CAD is a cable and harness design tool for creating and documenting cable assemblies and wiring harnesses. It is aimed at assembly work that involves mapping system-level connectivity, and it includes separate builders for projects, single legacy assemblies, custom components, and multi-conductor cables.
Its harness workflow is centered on a drag-and-drop interface. The product supports placing connectors, routing wires and cables, assigning signals, and generating documentation, with real-time visual feedback rendered through SVG. It also includes automatic bill of materials creation with part counts and specifications, export to SVG, PNG, or PDF for manufacturing documentation, a built-in revision history with rollback, and a searchable parts database with manufacturer specifications and fuzzy search. The parts library is described as expanding and includes connectors from 90+ manufacturers.
Splice CAD also provides a component creator for parts that are not already in the library. The tool says custom components can be designed across multiple categories, including connectors, motors, relays, power supplies, and industrial components, with flexible pin layouts and a template library for common footprints. A cable creator lets users define multi-core cables by specifying conductor properties, insulation, and jacket materials, and the platform offers a wire specification library and material documentation.
Delivery options include a native desktop app for macOS, Windows, and Linux, which is described as offline-capable, filesystem-integrated, and auto-updating. The same source also mentions an MCP Server for AI agents, a web embed for interactive harness viewing in web applications, and a Python library for programmatic harness creation and automation. The page describes the software as free and names Splice Group LLC in the legal footer.
Overview
5 featuresIn the PCB & circuit design space, Splice CAD takes a focused approach. It focuses on designing and documenting cable assemblies and wire harnesses efficiently without traditional CAD complexity. It is built as a B2B product for engineers and manufacturers. There is a free tier. Splice CAD is available on the web, the command line, macOS, Windows, and Linux.
Splice CAD builds and maintains Splice CAD, and it first shipped in 2026. The project is developed in the open on GitHub with 12 commits in the last 90 days. Key capabilities include cable assembly design, wire harness documentation, and parts library. It exposes integrations via an MCP server.
Summary written by a language model from the project’s public pages.
- Cable assembly design
- Wire harness documentation
- Parts library
- Export to industry formats
- Offline mode
Built with & integrations
- Astro
- /_astro/ in the HTML
- Cloudflare
- cf-ray header
Trust & compliance
Indexing history
1What PulseGate has recorded for this listing
Frequently asked questions about Splice CAD
- What does Splice CAD do?
- Splice CAD focuses on designing and documenting cable assemblies and wire harnesses efficiently without traditional CAD complexity. It is catalogued under PCB & circuit design on PulseGate.
- Who is Splice CAD for?
- Splice CAD is a B2B product built for engineers and manufacturers.
- Does Splice CAD have a free plan?
- Yes — there is a free tier, with paid plans for advanced use.
- What platforms does Splice CAD run on?
- Splice CAD runs on the web, the command line, macOS, Windows, and Linux.
- Is Splice CAD still maintained?
- The GitHub repository shows 12 commits in the last 90 days.
- What are alternatives to Splice CAD?
- Similar projects tracked by PulseGate include CheckMyPCB, gerbonara, and CircuiTikZ Designer.CheckMyPCBgerbonaraCircuiTikZ Designer
- Who makes Splice CAD?
- Splice CAD is developed by Splice CAD.
- When did Splice CAD launch?
- Splice CAD first shipped in 2026.
Also in PCB & circuit design
Same category — not a similarity match