Local · Free batch · No signup

ASS to SBV

Need YouTube SBV from an ASS/SSA file? Convert in your browser — timing and plain text only; ASS styles are dropped.

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

Only timing and plain text are kept. ASS/SSA styles, positions, and effects cannot be carried into SRT/VTT/SBV.

Drop ASS files here

one file, or a free batch · .ass

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

How it works

Fansub / Aegisub → YouTube
Your working file is styled ASS, but YouTube Studio uploads want SBV with plain dialogue timing.
Publish a clean YouTube track
Keep the ASS master for encodes; ship a style-free SBV for the public YouTube caption track.
Quick upload without another tool
Skip a second desktop converter — drop ASS, download SBV, upload in Studio.

Please noteASS styles and effects are removed. SBV keeps timing and readable text only.

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?

No. When converting to SRT / VTT / SBV we keep timing and plain text only, and we tell you upfront.

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 SBV.

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 SBV back to ASS?

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