Video to Audio Converter — Extract Audio from Video, Free
This free video to audio converter extracts the audio track from your video and saves it as an MP3 file. Drop in an MP4, MOV, MKV, AVI, or WEBM file and download the MP3 — no software to install, no account to create.
Everything runs locally on your device. The conversion happens inside your browser, not on a server. That matters more than it sounds: video files often contain things you wouldn't want sitting on someone else's server — a recorded lecture, a private voice memo, a client call, an unreleased track. With this tool, the file never leaves your computer.
No sign-up, no watermark, no upload limit tied to an account.
What You Can Convert
The converter isn't limited to one format pair. It handles:
- MP4 to MP3 — the most common case, for screen recordings, downloaded videos, and phone recordings
- MOV to MP3 — for videos recorded on iPhone or in QuickTime
- MKV to MP3 and AVI to MP3 — for older or downloaded video files
If your file format isn't listed, try it anyway — the converter supports most common video containers.
Want more detail on a specific conversion? Read our guide to converting MP4 to MP3 or the guide to converting MOV to MP3 from iPhone and QuickTime.
Already have an audio file instead of a video? This tool is built for extracting audio from video, so for audio-to-audio conversion like WAV to MP3 or AAC to MP3, use the Audio Converter instead.
How to Extract Audio from a Video
Extracting audio from a video usually means opening some heavy editing software just to pull out one track. This tool skips that entirely:
- Upload your video file (drag and drop, or click to browse)
- Wait for the conversion to finish
- Download the MP3
The output is encoded at the highest quality by default, so there's nothing to configure. Conversion speed depends on your device, not on a server queue, since nothing is uploaded.
Why Use a Browser-Based Video to Audio Converter
Most video to audio converters either require installing an app or uploading your file to a remote server before you get anything back. Both come with tradeoffs: installed software takes up space and needs updates, and server-based converters mean your video sits on someone else's infrastructure while it's processed.
This converter does the extraction directly in your browser using your device's own processing power. Nothing is uploaded, so there's no wait for a server queue and no privacy tradeoff — the video, and whatever audio it contains, stays with you.
MP3 Quality: What to Expect
The converter outputs MP3 at the highest practical bitrate (320kbps), so the audio stays as close to the source as MP3 encoding allows. You don't need to pick a bitrate — it's handled automatically.
Keep in mind the ceiling is set by your original video's audio track. If the source audio was recorded or compressed at low quality, converting to MP3 won't add quality back — it just preserves what's there as faithfully as possible.
Frequently Asked Questions
Is this video to MP3 converter really free?
Yes. There's no limit on the number of conversions and no account required.
Will converting my video reduce the audio quality?
Some quality loss is unavoidable with MP3 since it's a compressed format, but at 320kbps the difference is very hard to hear. If the source video's audio is already low quality, converting won't improve it.
Is there a file size or duration limit?
Since the conversion happens in your browser rather than on a server, the practical limit is your device's memory and processing power rather than a fixed cap.
Does my video get uploaded anywhere?
No. The audio extraction happens entirely on your device. Your file is never sent to a server.
Can I convert an audio file, like WAV or AAC, to MP3?
This tool is for extracting audio from video files. If you're starting from an audio file, use the Audio Converter for WAV to MP3, AAC to MP3, and other audio format conversions.