I needed to convert the existing SQL server databases to SQLite databases as part of a DB migration program and did not find any decent free converter to do the job.
This is my attempt to solve the problem. I should warn you though that I did not have much time to test it on too many databases. In any case - the source code is very well documented and easy to understand, so if you do have a problem it should be relatively easy to fix. (Please send me the fixed source code. If you do so, I can update the software so that everybody can enjoy it.)