WebVTT from MP3
Upload an MP3 and generate WebVTT caption files for HTML5 video players, learning platforms, and web embeds that expect .vtt format.
Drop audio or video here
MP3, MP4, WAV, M4A, MOV, WebM and more · up to 6 GB each
Record audio
Pause and resume anytime · up to 3 hours
Automatic transcription settings · target 128 kbps
Supported formats: MP3, WAV, M4A, MP4, MOV, WEBM, AAC, FLAC
Private uploads. Files are used to create your transcript and exports.
Free monthly minutes included. No credit card required to start.
Built for audio, video, meetings, podcasts, lectures and interviews.
TXT, DOCX, SRT, VTT for all languages. PDF (basic ASCII only) for plain English text.
Why this tool
Export WebVTT files compatible with HTML5 <track> elements and many LMS players.
Create captions from MP3 narration without requiring a master video upload.
Switch to SRT export if your workflow needs traditional subtitle files instead.
Transcribe MP3 files in 100+ languages with auto-detect.
How it works
Add an MP3 file containing the speech you want captioned.
Pick language settings and review the generated transcript.
Download WebVTT and reference it in your web player or CMS.
Use cases
Attach VTT captions to web-hosted lesson audio or video.
Add captions to narrated help content embedded on company sites.
Generate VTT during development before final media is locked.
Formats
Need traditional subtitles?
VTT is best for web players, while SRT is the safer default for most video editors and publishing platforms. Convert the same MP3 audio to SRT when you need traditional subtitle cues.
Open MP3 to SRTFAQ
Related tools
Upload now or open your dashboard for longer projects and saved transcripts.