Local · Free batch · No signup

SBV to ASS

Turn a YouTube SBV into a basic ASS you can open in Aegisub or a fansub workflow.

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 SBV files here

one file, or a free batch · .sbv

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

How it works

Studio download → Aegisub styling
You pulled SBV from YouTube and want ASS so you can add styles, positioning, or karaoke later.
YouTube captions into an encode pipeline
Soft-sub or encode tools expect ASS; start from the SBV You already have in Studio.
Editable ASS container from plain SBV
You only need a valid ASS with a default style — decorate it afterward in a dedicated editor.

Please noteOutput is a basic ASS with a default style. Fancy effects are not invented from SBV.

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.

What is SBV?

SBV is YouTube Studio’s caption format. Editors and players more often use SRT; web players often use VTT.

Can I convert ASS back to SBV?

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