Professional 2D drafting in your browser. Import DXF files, draw with 39 tools, export to PDF — no installation, no license fees. Forever free.
Everything you need for 2D engineering drawings — right in your browser.
Create precise 2D drawings with 39 professional tools. LINE, CIRCLE, ARC, POLYLINE, HATCH, DIMENSION, SPLINE, ELLIPSE — plus TRIM, EXTEND, OFFSET, FILLET, CHAMFER, and ARRAY for editing.
Import and export real AutoCAD DXF files with full roundtrip support. 24 entity types preserved. Your existing drawings work out of the box.
Vector PDF export for printing. DWG export via ODA File Converter for AutoCAD compatibility. DXF save with Ctrl+S. Your files, your format.
Organize drawings with professional layer management. Control visibility, lock states, colors, and linetypes. Isolate layers, show/hide all — just like AutoCAD.
Smart tools designed for civil engineers. Each module works standalone or integrated with OpenCAD.
Automate progress payment schedules tied to construction milestones. Track completed work, generate invoice-ready reports, and manage contractor payments with full audit trails.
Extract quantities directly from drawings. Automated take-offs for concrete, steel, formwork, and earthwork. Link measurements to BOQ items and update in real time as designs change.
Monitor project progress against planned budgets. Calculate earned value percentages, track schedule and cost performance indices, and forecast completion with variance analysis.
Break down unit costs for every work item. Maintain material, labor, and equipment price databases. Generate detailed cost estimates and compare bid proposals with market benchmarks.
OpenCAD gives you professional 2D CAD tools at a fraction of the cost.