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Download SWI-Prolog development versions

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Binaries
Windows version (64-bits)13,552,950 bytesSWI-Prolog 9.1.10-1 for Microsoft Windows (64 bit)

Self-installing executable for Microsoft's 7/8/10 64-bit editions. See the reference manual for deciding on whether to use the 32- or 64-bits version.

SHA256:afbdfb66ced02101b202a8e76282e5e3db78f63329211e331ca1e0ac15df52b4
Windows version (32-bits)13,637,911 bytesSWI-Prolog 9.1.10-1 for Microsoft Windows (32 bit)

Self-installing executable for MS-Windows. Installs swipl-win.exe and swipl.exe. Works on Windows 7/8/10.

SHA256:7bfaedfbbdc8cf0e71f68cfb369a554aa633d502329488ec16a28bbcb12c70f1
MacOS bundle51,762,636 bytesSWI-Prolog 9.1.10-1 for MacOSX 10.14 (Mojave) and later on x86_64 and arm64

Mac OS X disk image with relocatable application bundle. Needs xquartz (X11) installed for running the development tools. The bundle also provides the commandline tools in the Contents/MacOS directory. Users of older MacOS versions are adviced to use Macports, Homebrew or install from source. This bundle contains universal (fat) binaries that run natively on Intel and Apple Silicon (M1, arm64).

SHA256:2d3f9c4741d5b063a6d7ebd0ac48afce302891dec28bc368831fc79b0240adb3
MacOS bundle28,228,994 bytesSWI-Prolog 8.5.3-1 for MacOSX bundle on intel

Mac OS X disk image with relocatable application bundle. Needs xquartz (X11) installed for running the development tools. The bundle also provides the commandline tools in the Contents/MacOS directory. Users of older MacOS versions are adviced to use Macports, Homebrew or install from source.

SHA256:39f755e651abedbc7954215949007a115bb676cc6221ae7881a71819487fadf9
Sources
Source archive11,940,972 bytesSWI-Prolog source for 9.1.10

Sources in .tar.gz format, including packages. See build instructions. See also the GIT repository.

SHA256:16c0d014510f5e0c3b427d2842cac89fea0d4c136caabbeb698d578ee8126870
Documentation
PDF file3,181,034 bytesSWI-Prolog 9.1.10 reference manual in PDF

SWI-Prolog reference manual as PDF file. This does not include the package documentation.

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Install scripts may download the SHA256 checksum by appending .sha256 to the file name. Scripts can download the latest version by replacing the version of the file with latest. This causes the server to reply with the location of the latest version using an HTTP 303 See Other message.

About the development releases

The development branches have their own GIT repository at the address below. See the general GIT instructions for details.

% git clone https://github.com/SWI-Prolog/swipl-devel.git

Should I use the development release or the stable one?

Many active SWI-Prolog users track the development releases or GIT versions for developing Prolog applications. Most of the time the development versions are fairly stable. Infrequent larger rewrites to the core infrastructure that may cause instability is typically announced on the forum.

Tracking the latest version offers some advantages for you are user:

  • Bug fixes are quickly available.
  • When you are stuck on a missing feature you can use this quickly after it has been added.
  • Although you are a little more often confronted with incompatibilities and regressions, such issues can be discussed and resolved.