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MP4 to MP3 Converter

Turn MP4 files — videos too — into MP3 in your browser — nothing is uploaded.

Takes the sound from the video — the picture is left out.

MP3, WAV, FLAC, M4A, M4B, MP4, AAC, OGA or WEBA, one or many. Drop them here or paste with ⌘V / Ctrl+V. Choose what each becomes on its row.

Runs on your device. Files are read and converted in your browser and aren't uploaded.

MP4

  • Lossy
  • AAC
  • Video container

Usually a video, most often with AAC sound. For audio, only the sound matters: you can take it out of an MP4 (or a MOV or M4V), or make an audio-only MP4 that plays wherever videos do.

MP3

  • Lossy
  • Plays everywhere
  • Small files

The audio format almost everything plays. MP3 makes small files by leaving out detail most ears won't miss, which makes it the safe choice for music, podcasts and voice notes you want to share, upload or keep on a phone.

Learn more about converting MP4 to MP3

When you'd do this

You want just the sound of a video: a recorded talk or lesson to listen to on the go, an interview to transcribe, the audio of a screen recording or a music video.

What to expect

The MP3's size depends only on how long the video is, not how big: a 10-minute video becomes an MP3 of about 14 MB at 192 kbps, or about 9.2 MB at 128 kbps — whether the MP4 was 50 MB or 500 MB.

Recommended settings

192 kbps (the default) for music; 128 kbps for talks and interviews, which saves a third of the space with no audible difference for speech.

Where it plays

Every phone, computer, browser and podcast app.

Good to know

  • Only the sound is taken; the picture is left out.
  • An MP3 made here can be up to 60 minutes long. For a longer video choose M4A instead: the video's AAC sound is usually copied as is, up to 12 hours.
  • An MP4 can be up to 2 GB. A video with no sound track can't be converted, and neither can sound no browser decodes (Apple Lossless, Dolby).
  • MOV, M4V and WebM videos work the same way.

How to do it

  1. Choose your MP4 files, or drop them on the page — as many as you like.
  2. Each is set to MP3. Change one on its own row if you like, and the MP3 bitrate and the channels in Settings.
  3. Convert all, then download each MP3, or all of them in one .zip.

Questions

How do I extract the audio from an MP4 video?
Choose the MP4, leave Convert to on MP3, press Convert and download the MP3. The video never leaves your device.
Is there a length limit for MP4 to MP3?
The MP3 can be up to 60 minutes long. For longer videos convert to M4A, which can be much longer.
Will MP4 to MP3 lose quality?
Slightly: a video's sound is usually AAC, and making an MP3 encodes it again. At 192 kbps it's hard to hear.
Can I convert several videos at once?
Yes — add them all, press Convert all, and download the MP3s one by one or as a .zip.
Contact usMP4 to MP3 Converter · OpsDrawer