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Best Free CAD Software in 2026: Truly Free Tools

Free CAD doesn't mean "crippled trial" anymore. Open-source projects like FreeCAD, KiCad, LibreCAD, and Blender are now production-grade, and major vendors offer real free tiers (Tinkercad, SketchUp Free, Fusion 360 Personal, Onshape Free). Below are 26CAD, BIM, and EDA tools you can use today at zero cost — no trial, no demo-ware, no watermark on commercial output (we've filtered those out).

Want strict open-source only? See open-source CAD.

  1. 1.
    B
    Blender logo
    BlenderFree · Windows / macOS / Linux
    4.8/5

    The free and open-source 3D creation suite.

  2. 2.
    L
    LTspice logo
    LTspiceFree · Windows / macOS
    4.8/5

    Free SPICE simulator from Analog Devices, the de facto industry standard for analog design.

  3. 3.
    O
    OpenCASCADE logo
    OpenCASCADEFree · Windows / macOS / Linux
    4.8/5

    The open-source geometry kernel for CAD developers.

  4. 4.
    S
    SketchUp logo
    SketchUpFreemium · Windows / macOS / Web / Android / iOS
    4.7/5

    The world's most intuitive 3D design tool for architecture and interiors.

  5. 5.
    DF
    DWG FastView logo
    DWG FastViewFreemium · Windows / Web / Android / iOS
    4.6/5

    Lightweight cross-platform CAD viewer & editor.

  6. 6.
    T
    Tinkercad logo
    TinkercadFree · Web / Android / iOS
    4.6/5

    Free, browser-based 3D design tool for beginners and education.

  7. 7.
    AD
    Autodesk Dynamo logo
    Autodesk DynamoFree · Windows
    4.5/5

    Visual programming for Revit and Civil 3D — automation, parametrics, and computational BIM.

  8. 8.
    DR
    D5 Render logo
    D5 RenderFreemium · Windows
    4.5/5

    Real-time ray-traced renderer for architecture, interiors, and product visualization.

  9. 9.
    CR
    CAD Reader logo
    CAD ReaderFreemium · Android / iOS
    4.4/5

    Mobile DWG viewer and measurement tool by Glodon.

  10. 10.
    O
    OpenFOAM logo
    OpenFOAMFree · Linux / Windows / macOS
    4.4/5

    Free open-source C++ CFD toolbox used widely in academia, research, and motorsport.

  11. 11.
    O
    OpenSCAD logo
    OpenSCADFree · Windows / macOS / Linux
    4.4/5

    The programmer's solid 3D CAD modeler.

  12. 12.
    Q
    QCAD logo
    QCADFreemium · Windows / macOS / Linux
    4.4/5

    The open-source 2D CAD standard for everyone.

  13. 13.
    TC
    Trimble Connect logo
    Trimble ConnectFreemium · Web / Windows / macOS / iOS / Android
    4.4/5

    Trimble's openBIM common data environment with strong Tekla and SketchUp integration.

  14. 14.
    CE
    CAD Exchanger logo
    CAD ExchangerFreemium · Android / iOS
    4.3/5

    Mobile 3D CAD viewer and converter for multiple file formats.

  15. 15.
    DT
    DWG TrueView logo
    DWG TrueViewFree · Windows
    4.3/5

    Official free DWG viewer and converter.

  16. 16.
    E
    EasyEDA logo
    EasyEDAFreemium · Web / Windows / macOS / Linux
    4.3/5

    Free browser-based PCB design tightly integrated with JLCPCB and LCSC parts catalog.

  17. 17.
    SP
    SolveSpace Pro logo
    SolveSpace ProFree · Windows / macOS / Linux
    4.3/5

    Constraint-based 2D/3D parametric CAD.

  18. 18.
    F
    FreeCAD logo
    FreeCADFree · Windows / macOS / Linux
    4.2/5

    The premier open-source 3D parametric modeler.

  19. 19.
    G
    Glovius logo
    GloviusFreemium · Android / iOS
    4.2/5

    Mobile 3D CAD file viewer for viewing and analyzing 3D models.

  20. 20.
    SE
    Solid Edge Viewer logo
    Solid Edge ViewerFree · Windows
    4.2/5

    Free viewer for Solid Edge and 2D CAD files.

  21. 21.
    C
    CircuitMaker logo
    CircuitMakerFree · Windows
    4.1/5

    Free community-edition PCB design from Altium, with public-cloud project sharing.

  22. 22.
    L
    LibreCAD logo
    LibreCADFree · Windows / macOS / Linux
    4.1/5

    Open source free 2D CAD for all platforms.

  23. 23.
    M
    MeshLab logo
    MeshLabFree · Windows / macOS / Linux
    4.1/5

    Open-source system for processing 3D meshes.

  24. 24.
    S
    SolveSpace logo
    SolveSpaceFree · Windows / macOS / Linux
    4.1/5

    A minimalist, open-source 2D/3D parametric CAD tool.

  25. 25.
    U
    UVCAD logo
    UVCADFreemium · Android / iOS
    4.1/5

    Mobile 2D CAD drawing and drafting application.

  26. 26.
    U
    Updraw logo
    UpdrawFreemium · iOS
    4.0/5

    Mobile 2D CAD drawing application with dimension tools.

Frequently asked

What counts as "truly free" CAD software?
Free tier with no expiry, no watermark on commercial output, and no compulsory upgrade after a trial period. We include Free, Freemium (gated paid tier), and Open Source.
Is Fusion 360 free?
Fusion 360 has a free Personal Use tier for non-commercial / hobbyist work. For commercial use you need the paid Standard or Premium tier.
Best free CAD for beginners?
Tinkercad (browser, no install) for absolute beginners. SketchUp Free or Onshape Free for slightly more capability. FreeCAD if you want parametric and open-source.
Best free CAD for professional work?
FreeCAD (parametric MCAD), Blender (organic / VFX / rendering), LibreCAD (2D drafting), KiCad (PCB design) are all production-grade open-source options.