Pivot is a small, open-source PHP weblog tool released under the GPL. It runs without a database — entries are stored as flat files on disk — which is why it caught on with people running cheap shared hosting in the early 2000s, when running MySQL was a luxury.

It was originally written by Bob den Otter (later of PivotX and Bolt) starting around 2002, with contributions from a handful of other people over the years. The 1.x branch reached its final stable release around 2008 and the project has been inactive since.

If you want to install it for archival or curiosity reasons, the download page still has the files.