KiCad
PCB & electronicsOpen-source electronics design automation suite
- Stars
- ★ 3k
- Licence
- GPL-3.0
- Updated
- Commercial OK
- Gerber
- DXF
Alternative to Altium Designer, Eagle

Modern EDA package for schematics and PCB layout
From GitHub, fetched 19 Oct 2026.
Horizon EDA is a free schematic and PCB design tool with a strong pool-based parts library, an interactive router and 3D preview.
| Runs on | Windows, Linux |
|---|---|
| Commercial use | Allowed Open-source licence (GPL-3.0): the Open Source Definition rules out restrictions on fields of use, including business use. |
Sources: opensource.org/osd. “Runs on” is from this listing. Blank means we haven't found it in official docs yet, not that it's unsupported.
Open-source electronics design automation suite
Alternative to Altium Designer, Eagle
Beginner-friendly open-source EDA suite
Alternative to Altium Designer, Eagle
Free browser-based schematic and PCB design
Alternative to Altium Designer, Eagle
Circuit simulator GUI using ngspice, Xyce and other engines
Alternative to OrCAD
Open-source mixed-signal SPICE circuit simulator
Alternative to OrCAD