AfraLISP vs CAD Exchange
AfraLISP is one of the oldest and most respected free AutoLISP teaching resources online — tutorials, sample routines, and reference material. CAD Exchange is a marketplace for paid and free CAD automation across AutoCAD, Civil 3D, Revit, and Dynamo. Use AfraLISP to learn; use CAD Exchange to buy production-grade tools across multiple software.
What AfraLISP does well
AfraLISP's tutorials have taught a generation of CAD pros to write AutoLISP. The reference material is broad and accessible. Sample routines are explained step-by-step rather than dropped as black boxes — perfect for learning, not just consuming.
What CAD Exchange adds
CAD Exchange covers what a free tutorial site doesn't: a multi-seller marketplace across multiple software stacks, license-key tracking, refunds, automated security scanning of binaries, and a Request marketplace for custom work. The two are complementary — most CAD pros learn from sites like AfraLISP and buy production tools from marketplaces.
Side-by-side comparison
| AfraLISP | CAD Exchange | |
|---|---|---|
| Primary purpose | Teaching AutoLISP | Buying/selling production CAD automation |
| Cost | Free | Paid (with free listings) |
| Software coverage | AutoLISP only | AutoCAD, Civil 3D, Revit, Dynamo, .NET |
| Author model | Curated single-author tutorials | Multi-seller marketplace |
| Best for | Learning to write LISP | Buying ready-to-use tools |
When to use AfraLISP
Use AfraLISP when you're learning AutoLISP from scratch or looking up reference material. The tutorial format is unmatched for self-study.
When to use CAD Exchange
Use CAD Exchange when you want to buy or sell finished tools, when you need automation beyond LISP, or when you want vendor accountability for paid plugins.
Frequently asked questions
Is AfraLISP still maintained?
The tutorials remain online and useful even if updates are slow. The material is largely timeless because core AutoLISP hasn't changed dramatically in decades.
Can I learn AutoLISP on CAD Exchange?
Our learning center has guides and tutorials, and many sellers ship 'Source Included' listings you can read to learn. For a structured tutorial path, AfraLISP and the AutoLISP Reference remain excellent starting points.