Local · Free batch · No signup

VTT to ASS

Convert WebVTT into a basic ASS file for Aegisub or similar workflows.

Files stay in your browser. Nothing is uploaded to a server.

Output is a basic editable ASS (default style). Fancy effects are not invented — add them later in a tool like Aegisub.

Drop VTT files here

one file, or a free batch · .vtt

5 MB per file · 50 files and 30 MB per batch

How it works

Web captions → Aegisub styling
Source timing lives in VTT from a site or player; you need ASS to restyle, reposition, or add effects in Aegisub.
Course VTT into a soft-sub workflow
LMS or course VTT should enter an encode / soft-sub pipeline that speaks ASS.
Bridge CMS VTT to fansub tools
Marketing or docs captions are VTT; your subtitle tooling is ASS-centric.

Please noteOutput is basic ASS with a default style. Effects are not auto-generated from VTT.

Are my files uploaded?

No. Conversion runs in your browser. CueConvert does not require an account and does not upload subtitle files for conversion.

Are ASS styles / effects preserved?

Output is a basic editable ASS with a default style. Fancy effects are not invented.

Does a batch cost extra?

No. A batch is free, with no account, same as one file. Successes download as one zip. Failures are listed on their own.

Will timing and text stay accurate?

We aim to keep readable text and timing. After convert, use the preview to check cues, then download ASS.

What if Chinese text looks garbled?

We try to detect file encoding automatically. If it still looks wrong, re-save as UTF-8 locally, then drop the file again.

Can I convert ASS back to VTT?

Yes. Use the reverse link below this page when that route is live, or open it from the Tools menu.