FR
FreeCAD
Best for: Open-source parametric 3D CAD for engineering
FreeOpen Source
FreeCAD is an open-source parametric 3D modeler for designing real-life objects of any size, from mechanical parts to buildings. It runs on Windows, macOS and Linux, with workbenches for part design, sketching, assemblies, 2D drawings, FEM analysis and CAM.
- History-based parametric modeling with a constraint sketcher
- Assembly, TechDraw drawing, FEM and CAM workbenches built in
- Free for any use, including commercial, on Windows, macOS and Linux
Free tier: Listed as free — verify limitsPricing: Free (open source)
SO
SolveSpace
Best for: Lightweight constraint-based parametric CAD
FreeOpen Source
SolveSpace is a free (GPLv3) parametric 2D and 3D CAD tool built around a geometric constraint solver. It models parts with extrudes, revolves, helixes and Boolean operations, can simulate planar and spatial linkages, and exports STL, STEP, DXF, PDF and SVG.
- Constraint-based parametric sketches and 3D parts
- Mechanism simulation with pin, ball and slide joints
- Exports STEP and STL for CAM and 3D printing, and DXF or SVG for laser cutting
Free tier: Listed as free — verify limitsPricing: Free (open source)
AU
AutoCAD
Best for: Industry-standard 2D drafting and DWG drawings
AutoCAD is Autodesk's computer-aided design software for precise 2D drafting and 3D modeling, used for architectural, engineering and construction drawings. Its native DWG format is the standard for exchanging drawings. It is sold only by subscription.
- Precise 2D drafting, annotation and sheet layouts
- Native DWG format used across architecture, engineering and construction
- 3D solid and surface modeling, plus web and mobile apps
Free tier: Check providerPricing: $2,095/yr / $260/mo
BR
BricsCAD
Best for: DWG-compatible CAD with perpetual licences
BricsCAD is DWG-based CAD software for 2D drafting and 3D modeling, with commands and a workflow familiar to AutoCAD users. Unlike AutoCAD it can be bought as a perpetual licence as well as a subscription, in Lite (2D), Pro (3D) and Mechanical editions.
- Native DWG files and AutoCAD-style commands
- Lite (2D), Pro (3D) and Mechanical editions
- Perpetual and subscription licensing
Free tier: Check providerPricing: Subscription or perpetual — Lite, Pro and Mechanical editions