Fantastic little tool. I used it on Baahubali 2, whose subtitles were drifting more and more with time, and it corrected it without any user intervention. Very nice!

It is even integrated into Bazarr (automatic subtitle synchronisation can be enabled in Bazarr's settings).

• https://github.com/smacke/ffsubsync/issues/10
• https://github.com/smacke/ffsubsync/issues/65