Is Draftr really free?

Draftr is free to download for macOS and Windows and includes a free tier with the core CAD tools, STL import, project export, and an AI usage allowance. Paid tiers raise the monthly AI allowance.

Does the free version work offline?

Yes. The geometry runtime ships inside the app, so modeling with direct tools works offline. The AI copilot features use the cloud.

What can I export on the free plan?

You can export STEP, STL, and GLB from the free plan.

Free CAD Software for Makers — Download Draftr

Draftr is free CAD software for macOS and Windows. It's free to download and comes with a free tier, so you can start modeling real parametric parts today — with an AI copilot built in for when you'd rather describe a change than click through it.

What You Get for Free

Parametric solid modeling — pads, pockets, fillets, chamfers, patterns, and sketches on the OpenCascade kernel.
Non-destructive draft stack — editable feature history, undo/redo, and a face-aware viewport.
STL import — turn a downloaded or scanned mesh into an editable part.
Exports — STEP, STL, and GLB.
Runs offline — the geometry runtime ships inside the app.

The AI Copilot

Draftr's free tier includes an AI usage allowance so you can try Full Generate (build a part from a description) and Quick Edit (change a selection by describing it). Paid tiers lift the monthly AI allowance when you're using it heavily, but the core CAD tools and project export stay available on the free plan.

Free CAD That Doesn't Feel Free

No online-only lock-in. Model on your machine; export open formats.
Real geometry kernel. OpenCascade-backed solids, not a toy modeler.
Print-ready. Dimensionally accurate STL for any slicer.
Modern workflow. Spotlight-style command palette, console commands, and streaming AI feedback.

Great For

3D-printing hobbyists modeling functional parts and replacements.
Makers and tinkerers who want parametric history without a subscription to start.
Students and newcomers learning solid modeling with an AI safety net.

Download Draftr

Download the free CAD app for macOS or Windows →

One Tool, From Idea to Printable Solid

Draftr is a native desktop app for macOS and Windows. The geometry runtime ships inside the app, so it works offline right after install — no cloud round-trip to model a part. Every AI generation and edit lands as a versioned step in a non-destructive draft stack, so you can go back, change an earlier operation, and rebuild everything downstream without losing your parametric intent.

Explore the rest of Draftr: AI CAD generator, text to CAD, STL to CAD, AI 3D model generator, image to CAD, parametric CAD software, and free CAD software.

Download Draftr for macOS or Windows → · Read the documentation →