WEBM to Subtitle
AIAuto-generate subtitles from WebM
Drop video here or click to browse
Auto-generate subtitles from WebM
About WEBM to Subtitle
Captions help a WebM video reach more viewers and make it watchable on mute, but writing and timing each subtitle by hand is slow going. For web clips and recorded streams, automatic captioning saves a lot of that work.
This tool auto-generates subtitles from the speech in your WebM file, transcribing the audio and timing the captions to match. It works in your browser, free, with no signup and no watermark. Upload the WebM, let it process, and you'll get subtitles ready to use or fine-tune. It's a quick way to add captions to web video without doing the timing yourself.
Common uses
- Caption a WebM web clip for social sharing
- Add subtitles to a recorded WebM stream
- Generate a draft subtitle file from a WebM video
- Make a browser-captured WebM accessible with captions
How to use
- 1
Upload your file
Click the upload area or drag & drop your file. Supports WEBM. Up to 50 MB.
- 2
Click "Process — WEBM to Subtitle"
Click the process button. Your file is converted instantly on our secure servers.
- 3
Download your result
Preview and download your converted file. No watermarks, no quality loss, no expiry.
Why ToolHub?
- 100% Free — no account needed
- Works in your browser — no software required
- Instant results
- Secure and private
- No data stored
- Simple to use
FAQ
Are the subtitles timed to the speech?
Yes. The tool transcribes the audio and aligns each caption with roughly when it's spoken in the WebM.
How accurate are the auto captions?
Accuracy depends on audio clarity. Clean speech gives the best results, and a quick review helps fix any mistakes.
Can I edit the subtitles afterward?
Yes. The result is a draft you can adjust for wording and timing.
Can I use WEBM to Subtitle on mobile?
Yes — ToolHub is fully responsive and works on iPhone, Android, tablets and all modern browsers. No app install needed.