ASS (Advanced SubStation Alpha) is the format of styled subtitles: fonts, colors, outlines, positions, karaoke effects. It is common for anime fansubs. But many TVs, phones and upload forms only accept SRT, so converting is often necessary.
What you keep and what you lose
- Kept: the text, start and end times, line breaks.
- Lost: fonts, colors, positions, effects. SRT has no place for them.
- Watch out: ASS files sometimes contain signs and on-screen text translations as separate lines. In SRT they appear as normal subtitles at the bottom.
Convert in the browser
The free ASS to SRT converter runs in your browser, with no sign-up and no upload. Timings and line breaks are kept.
With ffmpeg
ffmpeg -i input.ass output.srt
After converting
- If you see leftover tags like
{\an8}or<i>, use remove subtitle formatting. - If signs created lines that overlap the dialogue, clean them with fix overlapping subtitles.