MP4 to MP3 Converter
Runs locally in your browser. Nothing leaves your device.Extract the audio track from MP4 videos and save it as MP3 - entirely in your browser.
MP4 files
Only convert content you are allowed to use.
No MP4 file selected yet.
MP3 settings
MP3 is lossy. A higher bitrate cannot restore details missing from the source.
How it works
- 1
Add MP4 files
Choose one or more MP4 or M4V files.
- 2
Set quality and tags
Choose a quality profile and edit title, artist, album, and other MP3 tags if needed.
- 3
Download the MP3
Download the result individually or together as a ZIP.
Good to know
MP4 to MP3 extracts the audio track from MP4 or M4V files directly in your browser as an MP3 file. Five quality profiles — Standard, High quality, Maximum quality, Speech, and Custom — cover different use cases, and multiple files can be processed together as a queue and downloaded as a ZIP.
Processing runs locally in the browser. MP3 tags such as title, artist, album, and year can be edited directly; MP3 is lossy, and multichannel audio is downmixed to stereo for the output.
Typical use cases
Save podcast or lecture recordings as audio
Extract the audio track from an MP4 recording to reuse or archive it as a standalone MP3 file.
Manage MP3 tags directly during export
Enter title, artist, album, year, and track number, or remove existing tags, instead of editing the file afterward in a separate program.
Batch-convert multiple videos to MP3
Add multiple MP4 files to the queue and download all generated MP3s together as a ZIP archive.
Tips for better results
Match the quality profile to the content
Use the “Speech” profile for podcasts or lectures with a small file size, and “High” or “Maximum quality” for music where sound detail matters.
Trim before converting
Use the start/end selection to convert only the needed portion to MP3, instead of processing the whole video and trimming it afterward.
Features
Five quality profiles
Standard, High quality, Maximum quality, Speech, or a custom bitrate, sample rate, and channel count.
Edit MP3 tags directly
Set title, artist, album, year, and track number, or remove existing tags before downloading.
Local and in batch
Conversion happens directly in the browser; multiple files can be processed as a queue and downloaded as a ZIP.
Frequently asked questions
What happens to multichannel audio?
It is downmixed to stereo for the MP3 output, since MP3 is not a multichannel format.
Can I convert multiple videos at once?
Yes. Add multiple files to the queue and download the results individually or together as a ZIP.
Are my videos uploaded?
No. Conversion runs entirely locally in the browser; the files never leave your device.
More tools
Looking for another tool?
Every tool runs locally in your browser – no sign-up, no upload, and it works offline.