Bibtag

Bibtag is a highly efficient software program that is designed to 'canonicalize' a bibtex database by calculating all the citation tags once again. Additionally, the program also comes with an exceptional 'pretty-print' feature that allows users to output a sorted database.

The best part about using Bibtag is that it enables users to have complete control over the program's behavior. There are a plethora of user options available that can be utilized to ensure that the software operates as per one's liking.

Even though the program is unchanged, the standard automake/autoconf infrastructure has been added to ease the building and installation procedure considerably. Thanks to this feature, users can install and use the software with complete ease and convenience, without any technical issues.

Overall, if you're someone who frequently uses bibtex databases, Bibtag is undoubtedly a must-have software program that can significantly simplify your citation tag calculations, sorting, and pretty-printing tasks. Its user-friendly interface, combined with a robust set of features, makes it an excellent choice for both novice and experienced users alike.