SWI-Prolog downloads
Available versions
- Stable release Sources and executables for MS-Windows and MacOS X version 6.2.x
- Development release Sources and executables for MS-Windows and MacOS X version 6.3.x
- Daily builds for Windows

- Some popular old versions
- GIT access, browse GIT repository
Read more about
- Available SWI-Prolog versions
- Information on Linux packages and building on Linux
Get the manual on paper
The full SWI-Prolog manual is also available as a print-on-demand book.
This comprehensive manual gives an overview of the system and how to
set-up programming projects with it, it describes the built-in
predicates, module system, coroutining, threads, the Constraint Handling
Rules library, the foreign language interface and how to generate
runtime applications.
Clicking the cover page at the left brings you to google books, which shows the places where you can order the book.
More gadgets
For European citizens, it might be wiser to order with the UK branch of cafe press. This site also provides links to other national branches of cafe press. It appears that the various national sites offer a different selection of items, notably see the Spanish shop.