MP4 to MP3
Turn any MP4 video into an MP3 audio file — free, in your browser, no upload.
or drag and drop it here
No file chosen yet. Maximum size: 500 MB.
Ready. Choose a file to start.
🔒 Runs 100% in your browser with FFmpeg — your file is never uploaded to a server. First use loads the converter engine (about 31 MB, cached in your browser afterwards). MP3 quality is your choice above. Works best on short clips on phones.
How to Use MP4 to MP3
Follow these 3 simple steps to get started in seconds
Choose your file
Choose your MP4 video file (up to 500 MB).
Click Convert
Pick an MP3 quality — 128, 192 or 256 kbps — and click Convert.
Download your file
Download the MP3 when it is ready.
Why use this MP4 to MP3 tool?
Designed for speed, privacy, and maximum efficiency without subscriptions
100% private
the video never leaves your device.
No sign-up, no watermark, no software to install.
No sign-up, no watermark, no software to install.
You choose the MP3 quality
higher bitrate means bigger files.
Works on phone and desktop in any modern browser.
Works on phone and desktop in any modern browser.
Frequently Asked Questions About MP4 to MP3
No. Conversion runs entirely in your browser with FFmpeg. Your file never leaves your device.
The first use downloads the converter engine (about 31 MB). After that it is cached in your browser and later conversions start faster.
500 MB per file. Bigger files can run out of browser memory, especially on phones — split long videos first if needed.
At 192 kbps or higher, the difference is inaudible for most ears. 128 kbps gives smaller files for speech and podcasts.
No — this tool converts files you already have. It does not download from YouTube or any other site.
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Ready to Use MP4 to MP3?
Got an MP4 you only need the sound from? Convert it to MP3 now — free, private, no upload.