Free CAD Tools
Practical browser-based utilities for CAD users, engineers, and designers.
LibreCAD Web
Create and edit 2D CAD drawings with LibreCAD in a Chromium-based desktop browser.
Open toolPen Plotter Studio
Compose pen-plotter artwork, preview toolpaths, export G-code, or plot live over USB in your browser.
Open toolFreeCAD Online
Free CAD design online with FreeCAD's parametric 3D modeler and desktop workbenches in a Chromium browser.
Open toolSketchForge 3D
Build shapes, cut holes, import models, and export 3D designs in a local-first browser workspace.
Open tool ViewerCAD Viewer
Open STEP, IGES, STL, OBJ, GLTF, GLB, 3MF, PLY, IFC, FCStd, and 3DM files directly in your browser.
Open tool CNCNC Viewer
Load, edit, visualize, and inspect G-code files for CNC programs directly in your browser.
Open tool DrawingDXF Viewer
Open 2D DXF drawings, pan and zoom geometry, and measure distances between points in your browser.
Open tool PCB AssemblyInteractiveHtmlBom
Generate and inspect interactive HTML bills of materials for KiCad, EasyEDA, Eagle, Fusion 360, and Allegro PCB designs.
Open tool 3D Printing3D Printing Cost Estimator
Estimate filament, electricity, machine wear, and failed-print costs for FDM and FFF prints.
Open tool EngineeringUnit Converter
Convert length, area, volume, mass, force, pressure, torque, power, energy, temperature, and more.
Open toolWhat should we build next?
Tell us which browser-based CAD, CNC, engineering, or 3D printing utility would make your workflow easier.