SRT → ASS
Convert SRT to ASS
Free in-browser converter from SubRip Subtitle (SRT) to Advanced SubStation Alpha (ASS / SSA). No signup, no upload — runs entirely on your device.
- Nothing is uploaded
- Timestamps preserved
- No account needed
2 cues in
2 cues out · 642 B
How this converter behaves
100% in your browser
We never see your file. Conversion runs as JavaScript in the page you're reading.
Round-trip safe
Convert SRT → ASS / SSA → SRT and you should get the same content back, line-for-line.
Spec-compliant output
ASS / SSA files validate against the ASS / SSA reference parsers.
Bidirectional
Reverse direction (ASS / SSA → SRT) is one click away — no need to bookmark a different page.
About these formats
SRT
SRT was created for the SubRip ripper utility and is now the lingua franca of subtitling: every video player, every YouTube uploader, every editing suite reads it. Each cue is a numbered block of plain text bracketed by a start→end timestamp written as `HH:MM:SS,mmm`. Styling is generally limited to a few HTML-style tags (<i>, <b>, <font>).
Full SRT guide →ASS
ASS (and its predecessor SSA) was designed for typesetting-quality subtitles in the anime fansub community. Each cue can specify font, size, primary/secondary/outline/shadow colours, alignment, layer, position, and per-syllable karaoke highlighting via {\k} tags. It is the only subtitle format that can express broadcast-grade typography and complex on-screen effects.
Full ASS guide →What survives the conversion
What changes in this conversion
ASS has nowhere to put the following, so it is dropped:
- Cue identifiers — A handle for each cue, useful when diffing or re-syncing.
Questions
How do I convert SRT to ASS?
Paste your SRT into the input box, or open a file from your device. The converter runs in your browser and produces ASS instantly. Click Download to save it.
Is this free?
Yes — no signup, no credits, no upload. Conversion happens entirely on your device, so the file never leaves your browser.
Are timestamps preserved?
Yes. Timestamps round-trip from SRT into ASS with millisecond precision.
What if my SRT has styling or positioning?
Only what both formats can express survives a conversion. ASS keeps the timings and the text; formatting that ASS has no equivalent for is dropped rather than approximated.