Free online 3D CAD tools for STL repair, file conversion, and AI-powered parametric modeling
Stage
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Founded
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Based in
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IT
Pricing model
Free
Freemium
Pricing
Not given
Free tools: STL repair, format conversion (STL/OBJ/3MF to STEP/GLB). FoxCAD Studio AI: Starter Pack 25 Credits €2.99, Pro Pack 100 Credits €6.99, Power Pack 250 Credits €12.99, Studio PRO subscription €9.99/month unlimited. New users receive 20 free credits. Each text-to-CAD generation costs 2 credi
Key features
Inspect 3D mesh geometry and measurements
Repair duplicate faces and degenerate triangles
Fix incorrect face orientation
Close small triangular holes
Handle selected self-intersections
Compare before and after repairs
Optional uniform scaling of models
Download repaired STL files
Process files up to 50 MB
Local browser processing with no file upload
STL mesh repair with Manifold3D kernel for non-manifold fixes
STL to STEP conversion using OpenCASCADE AP214 standard
Multi-format conversion: OBJ, 3MF to STL, GLB for AR
AI text-to-CAD generation with neural modeling engine
Parametric 3D design with CSG 2-Manifold topology
Watertight mesh certification and slicer telemetry
Browser-based zero-login access, no software installation
What makes it different
Runs entirely in your browser with no file uploads to servers
Free with no account or subscription required
Open-source software under GPL-3.0-or-later license
Conservative repair approach preserving original design intent
Real-time before and after visualization of repairs
Certified 2-Manifold topology ensures files print without slicing errors
Industrial-grade STEP export for CNC machining and professional CAD software
AI-powered text-to-CAD at lower cost than competitors (€0.14 per model)
STLFixer