QCAD ou Autodesk AutoCAD : une bonne alternative sous Linux ?

QCAD, alternative Linux à Autodesk AutoCAD

Mis à jour le 18 octobre 2026

Notre avis

QCAD is a solid replacement for AutoCAD if your work is strictly 2D drafting. It handles layers, dimensions, and DXF files well, making it suitable for mechanical or architectural 2D plans. However, it is not a drop-in replacement for 3D modeling tasks, as QCAD lacks 3D capabilities entirely. If you rely on AutoCAD’s 3D solid or surface modeling, QCAD will not work for you. For pure 2D users who need a free, open-source tool with decent scripting support, QCAD is a viable and capable alternative that runs natively on Linux.

Couverture fonctionnelle60%

Licence: GPL-3.0
Prix: Gratuit
Dernière version: 3.33.1
Note: —

Installer QCAD

Ce qui fonctionne pareil

Supports 2D drafting and technical drawing creation
Offers layer management with visibility controls
Includes dimensioning and annotation tools
Supports DXF file import and export
Allows scripting for automation tasks

Ce qui change

QCAD is strictly 2D; it lacks all 3D modeling features found in AutoCAD
QCAD uses ECMAScript for scripting, whereas AutoCAD uses AutoLISP or .NET
QCAD is open-source and free, while AutoCAD is commercial and subscription-based
QCAD has limited native DWG support compared to AutoCAD's full native implementation

Ouvrir vos fichiers Autodesk AutoCAD

QCAD has extensive support for DXF files, which is the standard interchange format for CAD data. You can import and export DXF files reliably. Native DWG support is more limited; while QCAD can often read DWG files, it may not preserve all proprietary AutoCAD-specific entities or complex blocks perfectly. For best compatibility, converting AutoCAD DWG files to DXF before importing into QCAD is recommended to avoid data loss or rendering issues.

Passer de Autodesk AutoCAD à QCAD, étape par étape

Install QCAD via your distribution's package manager (e.g., dnf install qcad on Fedora).
Convert existing AutoCAD DWG files to DXF format using AutoCAD or a converter tool.
Import the DXF files into QCAD and verify layer structures and annotations.
Review and re-apply custom line styles and hatches if they did not import correctly.
Test your workflow by creating a sample drawing to ensure precision and snapping work as expected.
Set up any necessary ECMAScript scripts to replace previous AutoLISP macros.

Fonctionnalités clés de QCAD

Gestion des calques avec basculement de visibilité
Import/export DXF étendu
Outils de dimensionnement et d’annotation de base
Styles de lignes et hachures personnalisables
Scriptable via ECMAScript (JavaScript)
Impression en PDF et formats raster
Options d’accrochage et de grille pour une rédaction précise

Installer QCAD sous Linux

Fedorasudo dnf install qcad

Arch / Manjarosudo pacman -S qcad

Questions fréquentes

Can QCAD open AutoCAD DWG files directly?

QCAD can often open DWG files, but support is not as robust as DXF. For critical projects, converting DWG to DXF first is safer to ensure all geometry and layers are preserved correctly.

Does QCAD support 3D modeling?

No. QCAD is a 2D-only application. If your workflow requires 3D solids or surfaces, you will need a different tool like FreeCAD or OpenSCAD.

Is QCAD available as a native Linux package?

Yes. QCAD is packaged in major distributions like Fedora and Arch Linux, so you can install it directly without relying on external binaries or Wine.