Planix
Planix turns a plain-English project brief into dimensioned 2D floor plans, an interactive 3D model, and preliminary engineering outputs.
What Planix is
Planix turns a plain-English project brief into dimensioned 2D floor plans, an interactive 3D model, and preliminary engineering outputs. Walls, rooms, and columns are placed by a mathematical solver rather than AI guessing. Its pipeline can provide country-aware preliminary structural defaults, a bill of quantities, a cost estimate, and engineering notes for licensed-engineer review. A browser-based WebGL viewport lets users inspect walls and openings. The product page says users can download AutoCAD-compatible DXF and PDF files; listed export formats also include IFC, OBJ, and STL. Planix Analyze accepts IFC, PDF, DXF, Excel, image, CSV, and DWG files for preliminary structural or civil analysis. Planix Connect is a Windows desktop agent for installed AutoCAD, and its guide lists AutoCAD 2018+ and Revit 2021+ compatibility; Revit and SketchUp support is described as beta. The Free plan costs nothing and allows 10 plan generations a month with no credit card required. Outputs are concept-to-preliminary grade and require licensed-engineer review before construction use.
Good
- Creates dimensioned 2D plans and an interactive 3D model
- Solver places walls, rooms, and columns
- Includes preliminary quantities and cost estimates
- Free plan allows 10 generations monthly
- Analyze accepts several common file formats
Watch out
- Outputs require licensed-engineer review before construction use
- Connect does not yet support mixed-use buildings
- Irregular plots are not supported by Connect
- Revit and SketchUp support is beta
Who it suits
Planix is aimed at civil and structural engineers, architects, builders, and design-build firms working on preliminary layouts, massing, or rough quantities. It may suit users who want early plans and estimates, provided a licensed engineer reviews outputs before construction use.
Verdict
Planix combines early layout generation with preliminary engineering outputs and several export formats. Its stated scope is preliminary, so its results need licensed-engineer review before construction use.
Plans and prices
From Planix's own pricing page, checked 5 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free | Free | 10 plan generations a month · no credit card required |
The facts
Each one read from Planix's own pages, with the date it was checked.
What it does
- 3D view
- The browser-based viewport is an interactive WebGL scene for inspecting walls and openings.checked 5 Oct 2026
- Audience
- Planix describes its audience as civil and structural engineers, architects, builders, and design-build firms working on preliminary layouts, massing, and rough quantities.checked 5 Oct 2026
- Connect
- Planix Connect is a Windows desktop agent that works with installed AutoCAD, while Revit and SketchUp support is described as beta on the product page.checked 5 Oct 2026
- Connect data handling
- The desktop agent uses outbound-only authenticated WSS connections, and the company says only generated drafting instructions—not local files—are exchanged with Planix.checked 5 Oct 2026
- Engineering limit
- Planix says its outputs are concept-to-preliminary grade and require licensed-engineer review before construction use.checked 5 Oct 2026
- Engineering outputs
- The pipeline provides country-aware preliminary structural defaults, a bill of quantities, a cost estimate, and engineering notes for licensed-engineer review.checked 5 Oct 2026
- Exports
- The product page says users can download AutoCAD-compatible DXF and PDF files.checked 5 Oct 2026
- File analysis
- Planix Analyze accepts IFC, PDF, DXF, Excel, image, CSV, and DWG files for preliminary structural or civil analysis.checked 5 Oct 2026
- Geometry
- Walls, rooms, and columns are placed by a mathematical solver rather than AI guessing.checked 5 Oct 2026
- Integrations
- Planix Connect controls locally installed AutoCAD and Revit, and the Connect guide lists AutoCAD 2018+ and Revit 2021+ compatibility.checked 5 Oct 2026
- Payments
- Planix says payments are handled by a PCI-compliant merchant-of-record provider and that it does not see or store full card numbers, CVV, or bank credentials.checked 5 Oct 2026
- Security
- Project files are stored in private Supabase Storage, downloads use time-limited signed URLs, and row-level security scopes projects and exports to their owning account.checked 5 Oct 2026
- Support
- The FAQ says the team usually replies within one business day.checked 5 Oct 2026
- Supported scope limit
- The homepage says Connect does not yet support structural drawings inside AutoCAD or Revit, mixed-use buildings, or irregular plots.checked 5 Oct 2026
- What it does
- Planix turns a plain-English project brief into dimensioned 2D floor plans, an interactive 3D model, and preliminary engineering outputs.checked 5 Oct 2026
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