Convert video to MP3 online. Extract audio from MP4, MOV, MKV, WebM, AVI. Free, no install, no watermark.
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100% in your browser, your files never leave your device. Free, no sign-up.
Drop in your video
Drag in an MP4, MOV, MKV, WebM, AVI or M4V file. It opens on your own device, nothing is uploaded, so even a large lecture recording starts instantly.
Extract the audio
The extractor reads the video's audio track and pulls it out whole. The picture is discarded, the sound is untouched.
Download as MP3 or any format
Save the audio as MP3 for sharing, WAV for editing, or send a long interview, lecture or meeting video straight to transcription.
Frequently Asked Questions
Everything you need to know before using Video to MP3
Is it legal to extract audio from video?
Extracting audio from your own videos or videos with the creator's permission is fine. Extracting from copyrighted content without permission may violate the platform's terms of service and copyright law. Check the source's terms before extracting.
Does Autrans support YouTube video URLs directly?
Autrans currently requires file upload, paste the URL of a video you own, or download the video first using a browser extension. Direct YouTube URL ingestion is on the Phase 2 roadmap.
What video formats can I extract from?
MP4, MOV (QuickTime), MKV (Matroska), WebM, AVI, M4V, and most container formats with an embedded audio track. The extractor reads the first audio stream by default.
Will the extracted audio quality match the source?
If the source video has high-bitrate audio (Apple Lossless, AAC 256+ kbps), the extracted MP3 will match. Output at WAV for a lossless copy, or MP3 320 kbps for a near-identical compressed version.
Can I extract audio in mono or stereo?
Stereo is preserved by default. Convert to mono via the standard audio converter after extraction if you need it for transcription, podcasting, or smaller file size.
Should I output to MP3, WAV, or M4A?
MP3 for general use and email-friendly file sizes. WAV for editing or archival quality. M4A (AAC) for Apple-ecosystem devices and a slight quality edge over MP3 at the same bitrate.
All part of Autrans's free audio toolbox, quick, private, browser-based tools for the everyday audio jobs creators and teams actually do: cut, convert, compress, join, record. No sign-up, no watermarks, nothing leaves your device.
Your next conversation deserves to be remembered.
Capture it with Autrans and turn it into a transcript you can search, understand, and share.