Download PARI/GP

If you intend to compile PARI/GP from a source distribution, make sure the GNU MP and GNU readline libraries are already installed on your system. They are not mandatory but make the gp calculator respectively faster and more user-friendly. (See the Extras section for details.)

Note: some browsers will silently gunzip the downloaded files, and save the .tar, whose size and checksums will be different.

PARI/GP

You may also want to download some Optional Packages.

Source distributions

Stable version: pari-2.5.5.tar.gz, 2663 KBy, Sep 7 17:49:44 2013
md5sum: fbd6402f8d3d3213b0633ab9ef4a63d0 pari-2.5.5.tar.gz
signature: pari-2.5.5.tar.gz.asc
Changelog
Development version: pari-2.6.2.beta.tar.gz, 3065 KBy, Jan 30 07:53:36 2014
md5sum: 150c908d846be5190e6820c1b6ab1c27 pari-2.6.2.beta.tar.gz
signature: pari-2.6.2.beta.tar.gz.asc
Changelog (BETA)

Snapshots from our GIT server are also available, corresponding to the above versions with all current patches applied.

Windows, binary distributions

Self-installing distributions for Windows

This one should work for most users, try it first.

Development version: Pari-2-6-2.exe, 62583 KBy, Jan 30 13:01:20 2014
md5sum: f71c364f8beccabddd0354adbb381d3a Pari-2-6-2.exe

Basic GP binary for Windows

These are basic barebones GP binaries, without online help, built with or without readline. Optional packages are not included either, although they can be downloaded separately later. Binaries compiled for XP/Vista and 7/8 are available; we advise to try them all then use the one that works best for you.

Stable version for XP, Vista: gp-2-5-5.exe, 4150 KBy, Sep 20 11:55:03 2013
md5sum: 54a465c0b90bafc521f8da4598b73eff gp-2-5-5.exe
Stable version for Windows 7, 8: gp-readline-2-5-5.exe, 4568 KBy, Sep 20 12:15:13 2013
md5sum: 1d208e317e492adf8c5534b196fad308 gp-readline-2-5-5.exe
Development version for XP, Vista: gp-2-6-1.exe, 4806 KBy, Sep 20 12:05:07 2013
md5sum: be76f8dddab8a6f3c0ec221d0d929ec0 gp-2-6-1.exe
Development version for Windows 7, 8: gp-readline-2-6-1.exe, 5225 KBy, Sep 20 12:11:41 2013
md5sum: e60d5a04263086cbf00e8ed7b7592ce5 gp-readline-2-6-1.exe

Snapshots from our GIT server contain basic GP binaries built daily from the master branch.

GP2C

The GP to C compiler translates GP scripts to PARI programs.

Last version: gp2c-0.0.8pl1.tar.gz, 352 KBy, Mar 4 11:30:57 2014
md5sum: ae65ace9a94789b1f870f6f224b8e0d0 gp2c-0.0.8pl1.tar.gz
signature: gp2c-0.0.8pl1.tar.gz.asc
Changelog

Extras

The GNU readline library provides line editing under GP, an automatic context-dependent completion, and an editable history of commands.
The GNU MP library can be used as a replacement for the native multiprecision kernel. It is rather faster than the native kernel (benchmarks).
The PariEmacs package. Require PARI/GP-2.4.1 and up. GP can be run in an Emacs buffer, with all the obvious advantages if you are familiar with this editor. This package was developped alongside PARI/GP for a long time. It is now developped independently and must be downloaded separately. (In particular, PARI/GP and PariEmacs may be upgraded independently.)
perl (used by the gphelp script) provides extended online help (full text from this manual) about functions and concepts, which can be used under GP or independently.