# Altium Designer alternatives

The highest-scoring alternative to Altium Designer in CAD Software is **FreeCAD** (67/100), against Altium Designer's 58/100. Ranked on independent signals, not user reviews. No vendor pays for placement.

| # | Alternative | Score | Confidence | Compare |
|--:|---|--:|---|---|
| 1 | [FreeCAD](https://www.vioscale.ai/software/freecad) | 67 | 35% (low) | [Altium Designer vs FreeCAD](https://www.vioscale.ai/compare/altium-designer-vs-freecad) |
| 2 | [OpenSCAD](https://www.vioscale.ai/software/openscad) | 62 | 14% (low) | [Altium Designer vs OpenSCAD](https://www.vioscale.ai/compare/altium-designer-vs-openscad) |
| 3 | [Rhinoceros 3D](https://www.vioscale.ai/software/rhinoceros-3d) | 61 | 26% (low) | [Altium Designer vs Rhinoceros 3D](https://www.vioscale.ai/compare/altium-designer-vs-rhinoceros-3d) |
| 4 | [SketchUp](https://www.vioscale.ai/software/sketchup) | 44 | 34% (low) | [Altium Designer vs SketchUp](https://www.vioscale.ai/compare/altium-designer-vs-sketchup) |

Altium Designer itself ranks #4 of 5 in CAD Software.

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*Source: Vioscale (https://www.vioscale.ai/alternatives/altium-designer). Generated 2026-09-01T14:37:33.708Z.*