50+ Drawing Tools
Lines, arcs, circles, ellipses, polylines, splines, hatches, and more. Complete 2D drafting toolkit with precision input.
3D Modeling
BREP solid modeling with boolean operations, extrude, revolve, sweep, and loft. Full 3D visualization with ray tracing.
DWG R2024
Native DWG R2004-R2024 read/write support. Import and export DXF, STEP, IGES, and IFC formats seamlessly.
Browser-Native
Runs entirely in your browser — Chrome, Safari, Firefox, Edge. Nothing to download, nothing to install, nothing to update. Open a tab and you're designing.
BIM & IFC
IFC import/export with building hierarchy, quantity takeoff, and BIM data extraction. Bridge the gap between CAD and BIM workflows.
FEM Analysis
Integrated stress analysis with von Mises, principal stress, and displacement visualization. LAPACK-powered solver for structural simulation.
CAM & G-Code
CNC machining with 2.5D/3D toolpaths, post-processors for Fanuc/Haas/Grbl, and G-code simulation with collision detection.
Parametric Engineering
Built-in spur gear generator with true involute math, steel section library (IPE/HEA/HEB), beam deflection calculator, bolt strength calculator — real engineering, not just drawing.
GIS Integration
Import Shapefile and GeoJSON data, map overlays with coordinate transforms, and geospatial analysis for site planning.
Assembly Modeling
Mate constraints, Bill of Materials generation, exploded views, and interference detection for multi-part assemblies.
Electrical Schematics
56 IEC/ANSI symbols, SPICE netlist export, wire numbering, and electrical rule checking for circuit design.
Civil & Survey
Contour generation, earthwork volume calculations, pipe network design, and survey point import for civil engineering.
Drawing Comparison
5 comparison modes with color-coded differences — overlay, side-by-side, slider, onion skin, and diff highlighting.
Parametric Constraints
13 geometric and dimensional constraint types with design table for variant generation and parametric history.
PBR Rendering
30 physically-based materials, real-time ray tracing, HDRI environment maps, and photorealistic output for presentations.
Plugin Store
Extend FirstOfCAD with plugins. Sandboxed runtime, version management, and a growing ecosystem of community add-ons.
Real-time Collaboration
Work on the same drawing with your team in real time. See teammates' cursors, automatic conflict resolution, entity locking, and in-session chat — all in the browser.
Cloud-Based Drawings
Your drawings live in the cloud — open them from any computer, anywhere. Auto-save keeps your work safe. Switch devices without losing a single line.
20 Languages
Full localization in 20 languages including Arabic RTL support. Use the app in your preferred language worldwide.
100+ Block Library
Pre-built library with 100+ industry-standard blocks for architecture, mechanical, electrical, and plumbing disciplines.
