Free tool · ASS → VTT

Convert ASS
to VTT

Drop an Advanced SubStation Alpha (.ass) file in and get a clean WebVTT for HTML5 video. Override codes are dropped; line breaks and timing are preserved.

Input · ASS

Output · VTT

Everything runs in your browser — no upload, no signup.

Need to generate the captions in the first place?

Drop a video into the editor — 5 free minutes, no card needed.

Open editor

Frequently asked

Why convert ASS to VTT?+

Browsers can't render .ass natively. WebVTT is the standard format for HTML5 <track>, so converting is the only way to ship Aegisub-style subtitles on a website without burning them into the video.

Will it preserve positioning (\an8 etc.)?+

No. Override tags are stripped. WebVTT supports its own positioning syntax, but mapping ASS positions to VTT cue settings is lossy and not handled here.

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