Comment by didgetmaster

I have a project that has been in 'perpetual beta' for years so it is a free download (25 MB zip file).

It runs completely on the user's computer so there is no service to maintain.

It is a new kind of data management system that was originally an object store to replace conventional file systems; but the tagging features I designed made it useful for creating, querying, and analyzing relational tables.

It is a hobby, so I like seeing how much faster I can perform operations than regular RDBMSs. It is extremely flexible, so lately I have been testing it out using large data sets. Creating tables with 100,000 columns or doing a pivot table in a 227M row table is fun for me.

See my profile for links.