Captioner

Captioner is an AI tool focused on generating video subtitles, built on a strong transcription model for accuracy. It supports over 98 languages, handles videos up to three hours long, and provides word-level timestamp alignment so you spend less time fixing timing by hand. You can edit subtitles in the browser, import existing subtitles for automatic alignment, and export in formats such as SRT and VTT, or download the video with subtitles burned in. It can even transcribe speech clearly when there is background music. A 60-minute free trial is offered before paid plans.

- Transcribe video into accurate subtitles

- Align subtitles to word-level timestamps

- Import existing subtitles and align them automatically

- Export SRT or VTT files, or download video with subtitles

- YouTubers and video creators adding captions

- Educators making multilingual course content

- Companies producing internal training videos

- Anyone who needs fast, accurate subtitles

Only a 60-minute free trial is offered, after which you move to a paid plan, and that pricing can change. Even with word-level alignment, long or noisy videos still need a human review pass for names, jargon, and punctuation. Because you upload video to the service, it depends on Captioner staying available, and you are sending your footage to a third party, so be careful with confidential content and keep your own copies of the originals. Name and archive exported files consistently so you can find and reuse them, and keep a backup copy of key data. When quality matters, export a small draft first to confirm the result before producing the final file.