Convert SRT to ASS
Your files never leave your browser. All processing is local.
About the SubRip (SRT) format
SRT is the most widely supported subtitle format. It is a plain-text file with numbered cues and comma-separated millisecond timestamps, accepted by virtually every video player, editor, and platform including YouTube and VLC.
About the Advanced SubStation Alpha (ASS) format
ASS is a rich subtitle format supporting fonts, colors, positioning, and karaoke effects. It is popular in the anime community and supported by players like VLC and mpv.
FAQ
Is this converter really free? Yes. Single-file conversion under 1MB is free forever. Batch processing and large files require a one-time $9 Pro license.
Are my files uploaded anywhere? No. Conversion runs entirely in your browser using JavaScript — your subtitles never touch our servers.
Will timing be preserved? Yes. Timestamps are converted losslessly between formats (ASS uses centisecond precision, so timings are rounded down to 10ms precision when converting to ASS).