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Captions for Lectures and Courses
Make lectures, tutorials and course videos accessible. Download SRT or VTT for any LMS or video host.
Drop a video or audio file
MP4, MOV, WEBM, MP3, WAV · up to 10 min on Free · no signup
01
Upload
Drop a video or audio file. It never leaves your device.
02
Edit & style
Fix any word, pick a caption style, adjust size and position.
03
Export
Download SRT/VTT free, or an MP4 with captions burned in.
Accessibility without the busywork
Captions help deaf and hard-of-hearing learners, non-native speakers and anyone studying in a noisy place, and they're often required for accessibility compliance.
Works with your platform
VTT works with most LMS platforms and web players; SRT works with YouTube, Vimeo and editing software.
FAQ
Frequently asked questions
Can I caption long lectures?+
Free accounts can caption videos up to 10 minutes. Pro handles 30-minute videos and Max handles up to 2 hours.
How accurate are the captions?+
Very accurate for clear speech, using the latest Whisper-class speech recognition. Every word is editable, so you can fix names, jargon or slang before you export.
Is my video uploaded to your servers?+
No. Your video is processed entirely in your browser. Only a compressed audio track is sent for transcription, and it isn't stored afterwards.