whohas is described as 'command line tool that allows querying several package lists at once - currently supported are Arch, Debian, Fedora, Gentoo, Mandriva, openSUSE, Slackware (and'. There are three alternatives to whohas for the Web. The best alternative is Repology, which is both free and Open Source. Other great apps like whohas are pkgs.org (Free) and Anitya (Free, Open Source).
- 3 alternatives