Extract Audio from Video
Take the sound out of a video and save it in its original format such as M4A or MP3 (no re-encoding, same quality), or as WAV or M4A. Handy for listening to lectures and meetings, and your video is never uploaded.
Your files never leave this device. Everything is processed inside your browser and nothing is uploaded to a server.
When to use Extract Audio from Video
Listen to lecture and meeting recordings
Take just the sound from a lecture or meeting recording where you do not need the picture, and listen on the go. It is far smaller than the video, so it is easy to keep on your phone.
Audio files for transcription and subtitles
Use it when a transcription app or subtitle program only accepts audio files. If an editing program cannot read the sound in a video, save it as WAV, which opens everywhere.
Turn a recorded performance into a music file
Keep just the sound of a concert or practice video you shot on your phone. Taking the original sound out as is means no re-encoding, so you keep the recorded quality.
How to use the Extract Audio from Video tool
- Click "Choose a video file" or drag a video onto the page.
- Choose a format. The default keeps the original sound as is (usually M4A); you can also save it again as WAV or M4A.
- Click "Extract audio", and when it is done, click "Download".
Frequently asked questions
Does the sound quality drop?
With the original sound as is, the sound data in the video is taken out without re-encoding, so the quality is exactly the same. Sound in phone and camera videos is mostly AAC, which becomes an M4A file. WAV is the decoded sound, so the quality is the same and only the size grows, while saving again as M4A may lose a tiny bit of quality.
Can I get an MP3?
Only when the sound in the video is already MP3, which is then taken out as is. Browsers have no built-in MP3 encoder, so AAC sound is not converted to MP3. M4A plays in most players on iPhone, Android, Windows and Mac.
What format is it saved in?
The original sound is saved in the format that matches its codec: AAC → M4A, MP3 → MP3, Opus and Vorbis (WebM videos) → OGG, FLAC → FLAC. Other codecs (such as AC-3) have no format to hold them as is, so they are saved again as WAV or M4A.
Which browsers does it work in?
Taking the original sound out only moves data, so it works in most modern browsers. Saving again as WAV or M4A needs the audio decoding and encoding of WebCodecs built into the browser (Chrome and Edge 94+, Firefox 130+, Safari 26+). Formats that cannot be made are disabled with the reason shown.
Can I extract the sound of just one part?
This tool extracts the whole sound. If you only need a part, cut it first with Trim Video (fast trimming takes seconds) and extract the sound from that file.
What gets downloaded?
When you first open a video, the page loads a program that reads and writes video files (mediabunny, about 120 KB compressed) from this site. Decoding and saving are done by the WebCodecs built into your browser, and your video is never uploaded. mediabunny is open source under the Mozilla Public License 2.0; the license text and source information are at justus.ing/vendor/mediabunny/README.txt.
Is my video uploaded?
No. Reading the video and taking out the sound all happen in this browser, so even large videos are processed right away with no upload time.
Are my files uploaded to a server?
No. Files are processed only inside your browser and are never sent to any server. Only the code and character mapping data needed for processing are downloaded from this site; your files themselves never leave your device. You can check this yourself in the Network tab of your browser's developer tools.
Are my files safe even with ads on the page?
Yes. Ads only run outside the tool area. The tool area, where you choose and process files, is an isolated space your browser keeps separate, so other scripts on the page, including ads, cannot read your file content or file names. The tool area is blocked from connecting anywhere other than this site. When you drag a file onto the page, the tool area expands to fill the screen so the isolated space receives the file.