Extract audio from a video as MP3
Pull the soundtrack out of your own recordings, lectures or interviews as an MP3 (or lossless WAV) without sending the file anywhere. Choose the format and bitrate; the audio is decoded and re-encoded on your device.
How to use the Video to MP3
- Drop a video file.
- Choose MP3 for compatibility, WAV for editing, M4A for Apple devices.
- Pick a bitrate: 128 kbps is plenty for voice, 192–320 for music.
- Click Extract and download the audio.
When you need audio only
Recorded lectures and meetings, podcasts captured as video, voice notes inside a screen recording, or music you performed yourself: the audio is usually what matters and a video file is ten times larger. Extracting the track keeps everything the microphone captured, at a fraction of the size.
Format choice
MP3 plays on everything; at 192 kbps it is transparent for most listeners and about 1.4 MB per minute. M4A (AAC) is slightly more efficient and native on iPhone and Mac. WAV is uncompressed (about 10 MB per minute) and the right choice if you will edit the audio further. OGG Vorbis is open and efficient but less widely supported by car stereos and older players.
Quality note
Video audio tracks are usually AAC at 96–256 kbps. Converting to MP3 re-encodes (a small loss); choosing a bitrate higher than the original does not add quality, it only adds size. If the source is speech, 128 kbps is more than enough.
Copyright
Use this on recordings you own or have permission to use. It does not download from streaming sites and is not intended for extracting copyrighted music.
How it runs without uploading
This tool uses ffmpeg, the same open-source engine behind most video software, compiled to WebAssembly. The first time you use a video tool the engine (about 30 MB) is downloaded from a content delivery network and cached by your browser; after that it loads instantly, even offline. Your video is read into memory, processed by the engine inside the browser sandbox, and the result is offered as a download. Nothing is transmitted. Because it runs on one CPU core, encoding takes roughly real time to three times real time depending on your device: a 30-second clip takes 30–90 seconds, a 10-minute video may take 10–30 minutes and needs a few hundred megabytes of free memory. For long videos, trim first or use a desktop tool.
Frequently asked questions
Can I extract audio from a YouTube video?
No. This tool works only on files you already have on your device; it does not download from websites.
Which bitrate should I choose?
128 kbps for speech, 192 kbps for music, 320 kbps only if the source is high quality.
Is the file uploaded?
No. The audio is decoded and encoded in your browser.
Privacy
This tool runs entirely inside your browser using WebAssembly and the Canvas/File APIs. Your files are never uploaded to ToolFlint or any third party; you can verify this in your browser's network tab or by switching to airplane mode after the page loads. Read how we process files.
Last updated 2026-09-23.