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M4A to OGG Converter

Convert M4A files to OGG without installing software or uploading anything. A minute of audio goes from about 1.4 MB as M4A to about 1.4 MB as OGG.

  • Free, no sign-up
  • Files never leave your device
  • Powered by FFmpeg
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Your files are processed on this device and are never uploaded to a server.

What happens when you convert M4A to OGG

CompressionLossy → Lossy
Size per minuteM4A ≈ 1.4 MB → OGG ≈ 1.4 MB at 192 kbps
QualityRe-encoded once more; at 192 kbps or higher the extra loss is very hard to hear
TagsTitle, artist and album tags are copied when the target format supports them
Opens inbrowsers, Android, VLC and games; iPhone apps and many car stereos do not

Sizes are typical values; your files will vary with content and settings.

M4A

M4A MPEG-4 Audio

M4A is an MPEG-4 container holding AAC audio. iPhone voice memos, iTunes purchases and many recorders save M4A, and it sounds better than MP3 at the same bitrate.

M4A converter
OGG

OGG Ogg Vorbis

OGG usually holds Vorbis audio, an open, royalty-free codec used by games, Spotify's older streams and many Linux apps.

OGG converter

How to use the M4A to OGG Converter

  1. 1

    Choose a M4A file or drop it onto the page.

  2. 2

    Review the audio options. The defaults suit most files.

  3. 3

    Click Convert and download your OGG when processing finishes.

Why convert M4A to OGG?

M4A files come from iPhone Voice Memos, iTunes purchases and many Android recorder apps. Some older players, car stereos and upload forms only accept MP3. Choose OGG Vorbis for game engines such as Unity and Godot, and for open-source software.

Frequently asked questions

Will the OGG lose quality?

Both formats are lossy, so converting re-encodes the data once more. Using a high quality setting keeps the generational loss very small. Avoid converting the same file back and forth repeatedly.

Will the OGG be smaller than the M4A?

About the same: a minute of audio takes about 1.4 MB as M4A and about 1.4 MB as OGG at 192 kbps. Lower the bitrate to shrink it further; 128 kbps is plenty for speech.

Questions about privacy, file-size limits or conversion speed are answered in the general FAQ.