AudioFetcherYouTube to MP3
Support us

Original audio

YouTube to M4A

YouTube already serves an AAC audio stream for every video. Choosing M4A in AudioFetcher gives you that exact stream in an M4A file, with no re-encoding, so the quality is identical to what you hear on YouTube and the file plays natively on Apple devices.

Open the converter Limits and help
No re-encodeBit-for-bit the stream YouTube serves.
Apple-friendlyPlays in Music, Files and iMovie.
Small filesAAC at roughly 128 kbps for most uploads.

How M4A download works

An M4A file is an MP4 container holding audio only. YouTube's default audio track is AAC in that container, so AudioFetcher can copy it straight through instead of decoding and encoding again.

  1. 1
    Paste the video link

    Any single public video.

  2. 2
    Choose M4A as the format

    The quality hint shows Original with No re-encoding, because the stream is passed through unchanged.

  3. 3
    Optional preparation

    Embed chapters and SponsorBlock work with M4A. Cover art embedding and the tag editor apply to MP3 output.

  4. 4
    Fetch and save

    The file downloads as .m4a. Files are temporary on the server, so save them before the displayed expiry.

Most YouTube videos carry AAC at about 128 kbps. Converting that stream to 320 kbps MP3 does not add quality, it only re-encodes it. If you want the smallest file at the same quality, pick M4A or Opus instead of MP3. Free conversions cover single videos up to 60 minutes. Use only videos you own or have permission to download.

Questions

Is M4A better than MP3 for YouTube audio?

M4A keeps the original stream, so there is no generation loss. MP3 is the more universal format for old car stereos and cheap players. If your device plays M4A, it is the better choice.

Will it play on Android and Windows?

Yes. AAC in M4A is supported by Android, Windows Media Player, VLC, foobar2000 and every modern browser.

Can I get the original video too?

Choose MP4 instead. Free allows one MP4 per day up to 720p and 20 minutes.

Can I convert M4A to MP3 later?

Yes, the local M4A to MP3 tool does that in your browser without uploading.

Related AudioFetcher guides