Add Captions to WebM
CentClip transcribes your WebM video and exports burned-in captions, SRT, and VTT files without requiring format conversion or a subscription. Built for developers, screen-recorder users, and accessibility teams who work with web-native video.
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MP4 · MOV · MP3 · WAV · WebM · MKV and more
5 free minutes · no account needed · no watermark
How to add captions to webm
- 1
Upload your WebM file
Drop your WebM file directly into CentClip - no account, no software installation, and no format conversion required. The tool accepts WebM from any source, including OBS recordings, browser exports, and screen recorders. Your first 5 minutes of audio are processed free with no credit card required.
- 2
Review and edit the transcript
CentClip generates a timed, word-by-word transcript you can edit in the browser before any export. Fix technical terms, product names, or speaker names that automatic transcription may have missed. Changes apply instantly to all output formats so you only edit once.
- 3
Download captions or your exported video
Export a burned-in MP4 with captions hardcoded into the video, an SRT file for players and platforms, or a VTT file for HTML5 web video. A plain-text transcript is included in the same job at no extra charge. Credits are charged at 5 cents per minute and never expire.
Why choose CentClip?
WebM files upload directly - no conversion step needed
Most captioning tools reject WebM outright and require you to convert to MP4 or MOV before uploading - a step that costs time and can introduce quality loss. CentClip accepts WebM as a first-class format straight from your screen recorder, Chrome export, or video editor. Whether your file came from OBS, Loom, or a browser's built-in recorder, you can upload it as-is and skip the conversion entirely. This alone removes the most common friction point in captioning web-native video.
Pay per minute rather than per month
Most captioning services charge a monthly subscription fee that adds up fast when you only have a handful of WebM files to caption. CentClip charges 5 cents per minute with no monthly fee - a 10-minute screen recording tutorial costs exactly 50 cents. Credits never expire, so buying a batch when you have a deadline works just as well six months later when the next project arrives. There is no plan tier to pick and no quota that resets at the end of the billing cycle.
All output formats from a single upload
A single WebM upload produces a burned-in MP4 for social sharing, an SRT file for YouTube and video players, a VTT file for HTML5 embeds, and a plain-text transcript for documentation or SEO. This covers accessibility compliance, developer use cases, and distribution all in one pass. You pay once per video and every format is included - there is no upsell for additional export types. For teams publishing the same recording to multiple places, this eliminates duplicate work.
FAQ
How accurate are captions generated from WebM files?
CentClip uses AI speech recognition that supports 50+ languages and performs well on clear audio from screen recordings and presentations. For technical content with jargon or acronyms, the in-browser transcript editor lets you correct any errors before exporting.
Is there a free trial for adding captions to WebM files?
Yes - your first 5 minutes are free with no account or credit card needed. After that, captioning costs 5c/min with no subscription required.
What file formats does CentClip accept and export for WebM captioning?
CentClip accepts WebM directly without conversion and exports a burned-in MP4, SRT, VTT, and plain-text transcript - all generated from a single upload.
Do unused credits expire after a project?
No. CentClip credits never expire - buy them once and use them for any future video, with no monthly reset or subscription to maintain.