Free tools · Extract
MP4 to MP3
Extract the soundtrack from an MP4 (or MOV, WebM) and save it as an MP3 — great for pulling music, a voiceover, or a podcast out of a video. Choose the bitrate. Browser-only, no upload.
Runs entirely in your browser. Your file is never uploaded — no watermark, no account.
How to use MP4 to MP3
- 1
Choose your file. Drop a file into the tool, or click to select one. It stays on your device — nothing is uploaded.
- 2
Pick your settings. Adjust the options if you like, then press Run. The first run downloads a ~32 MB engine once; after that it's instant.
- 3
Download. Everything is processed right in your browser — download the finished file instantly, with no watermark.
Frequently asked questions
- Is MP4 to MP3 free? Is there a watermark?
- Yes — MP4 to MP3 is completely free, with no sign-up, no watermark, and no limit on how many files you process.
- Do my files get uploaded to a server?
- No. MP4 to MP3 runs entirely in your browser with WebAssembly, so your MP4, MOV, WebM, MKV file never leaves your device and nothing is stored or seen by us.
- What can I put in, and what do I get out?
- MP4 to MP3 accepts MP4, MOV, WebM, MKV and gives you back a MP3 file. You can also set quality before you run it.
- What quality is the MP3 audio?
- MP4 to MP3 extracts at a high bitrate (and you can pick the quality), so the audio stays faithful to the original.