Is there a tool/website to compare package status in different Linux distributions?
whohas package (link) may help you.
Example
% whohas pidgin|grep "pidgin "
MacPorts pidgin 2.10.6 https://trac.macports.org/browser/trunk/dports/net/pidgin/Portfile
Slackware pidgin 2.7.11-i486-3sl slacky.eu
Slackware pidgin 2.7.0-i486-1 salixos.org
Slackware pidgin 2.7.0-i486-1 slackware.com
OpenBSD pidgin 2.9.0-gtkspell 8.3M
OpenBSD pidgin 2.9.0 8.3M 16-Aug-201
Mandriva pidgin 2.10.6-0.1.i586 http://sophie.zarb.org/rpms/a6ec6cd30f5fa024d14549eea375dba4
Fink pidgin 2.10.6-1 http://pdb.finkproject.org/pdb/package.php/pidgin
FreeBSD pidgin 2.10.6 net-im http://www.freebsd.org/cgi/pds.cgi?ports/net-im/pidgin
FreeBSD e17-module-everything-pidgin 20111128 x11-wm http://www.freebsd.org/cgi/pds.cgi?ports/x11-wm/e17-module-everything-pidgin
NetBSD pidgin 2.10.6nb5 10M 2012-12-15 chat http://pkgsrc.se/chat/pidgin
Ubuntu pidgin 1:2.10.0-0ubuntu2. 695K oneiric http://packages.ubuntu.com/oneiric/pidgin
Ubuntu indicator-status-provider-pidgin 0.5.0-0ubuntu1 7K oneiric http://packages.ubuntu.com/oneiric/indicator-status-provider-pidgin
Debian pidgin 2.7.3-1+squeeze3 706K stable http://packages.debian.org/squeeze/pidgin
Debian pidgin 2.10.6-2 591K testing http://packages.debian.org/wheezy/pidgin
Debian indicator-status-provider-pidgin 0.6.0-1 33K testing http://packages.debian.org/wheezy/indicator-status-provider-pidgin
Source Mage funpidgin 2.5.0 test
Source Mage funpidgin 2.5.0 stable
Source Mage pidgin 2.10.6 test
Source Mage pidgin 2.10.5 stable
Gentoo pidgin 2.10.6 http://gentoo-portage.com/net-im/pidgin
Gentoo pidgin 2.10.4 http://gentoo-portage.com/net-im/pidgin
The closest thing I've come across to a tool like this is pkgs.org:
pkgs.org - Linux Software Catalog and Packages Search The pkgs.org is created to provide you with the simplest method of searching and downloading the newest versions of the best Linux software - without the usual excessive popups or spyware. Also use it to find alternatives to commercial packages with expensive licensing fees and complicated restrictions.
Features
- Search for RPM, DEB, TGZ, TXZ packages from well-known repositories of the ALT Linux, Arch Linux, CentOS, Debian, Fedora, Mageia, Mint, OpenMandriva, openSUSE, PCLinuxOS, RHEL, ROSA, Slackware, Ubuntu distributions;
- Packages search by name, filename, summary, description, requires, provides, files and directories;
- Powerful packages browser (summary, description, files, requires, provides, changelog, etc.);
- Install Howtos for all available repositories;
- Free Software Catalog;
- RSS & Twitter;
- Fast servers to make your packages search as fast as possible;
- All packages are downloaded only from the official repositories!
You can use the Repology website.
Repology monitors a huge number of package repositories and other sources comparing packages versions across them and gathering other information. Repology shows you in which repositories a given project is packaged, which version is the latest and which needs updating, who maintains the package, and other related information.
It has some other useful features such as statistics for the repositories that it supports.
Here's a screenshot of its page for the versions for GIMP:
The legend for the label colours can be found at the bottom of this page. In short:
