- https://github.com/knuta/rcs2git – using Perl
- https://github.com/JochenHayek/rcs2git – using Perl – I forked knuta’s version
- https://github.com/arnoldrobbins/simple-rcs2git – using AWK
- https://github.com/Oblomov/rcs-fast-export – using Ruby
- https://stackoverflow.com/questions/1619737/migrate-project-from-rcs-to-git