Readable long-form subtitles
Review segmentation and wording before viewers encounter the captions.
Generate YouTube subtitles before the upload screen.
Use your source video to create and review captions, then take an SRT to YouTube Studio or publish a version with the captions already burned in.
Drop a video here
MP4, MOV, WebM or MKV · up to 500 MB
Uploads require NEXT_PUBLIC_TURNSTILE_SITE_KEY.
No signup. No watermark. Guest projects stay editable for 24 hours, or 7 days once you sign in.
How it works
- 01
Upload the source video
Choose the file you plan to publish. This tool does not need a public YouTube URL.
- 02
Generate and review
Create timed subtitles, then correct wording, names, punctuation, and line breaks.
- 03
Choose track or burn-in
Keep subtitles selectable with an SRT or make them permanent in a captioned MP4.
- 04
Publish on YouTube
Upload the finished video, and add the separate subtitle file in YouTube Studio when using a track.
Built for the correction after generation.
Styled captions for Shorts
Burned-in active-word treatments can travel with vertical clips when selectable tracks are not the goal.
Reusable subtitle files
Keep an SRT or VTT for another player, archive, translation workflow, or later edit.
Questions before upload
Can I generate subtitles from a YouTube URL?+
The current workflow starts from the source video file. It does not promise importing or downloading a public YouTube URL.
Should I download an SRT or a captioned video?+
Use SRT for a selectable YouTube subtitle track. Use a captioned MP4 when the visual style should always remain visible.
Can I edit the subtitles before uploading them to YouTube?+
Yes. Review and correct the text and timing before downloading the subtitle file.
Does the captioned MP4 include a watermark?+
No. Exported videos are watermark-free on both available plans.