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Download SWI-Prolog development versions

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Binaries
Windows version (64-bits)13,031,018 bytesSWI-Prolog 8.5.11-1 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.

SHA256:30e6bf58f01bbaf31564a2329576ab544b7657dd1da216ba493ce5b6827f610e
Windows version (32-bits)13,068,597 bytesSWI-Prolog 8.5.11-1 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:ffe7fb96e2780da1dba1a3985971c6a9ff330609a5224aab40f242ba31b72e00
MacOS bundle50,957,502 bytesSWI-Prolog 8.5.11-1 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).

SHA256:9ca24838cbf532ba7e56f0b786857fdab63d45d04bc0edcd1611624b1d06dcbc
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 archive11,480,652 bytesSWI-Prolog source for 8.5.11

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

SHA256:fd6ccb47b92f037f3bd52d9360a930c82eeff7dcc4e01fbd6b6195daaec993df
Documentation
PDF file3,023,780 bytesSWI-Prolog 8.5.11 reference manual in PDF

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

Show all files
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 mailinglist.

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.