Skip to the converter

M4A to OGG converter, without the upload.

Turn M4A audio files into OGG. It is converted in your browser, so the file never leaves your device.

Drop M4A files here

or choose from your computer paste with Ctrl V

Ready · other file types work too0 bytes uploaded, ever

Convert to

How to convert M4A to OGG

  1. Add your M4A audio files

    Drop M4A files onto the box above, or click it to choose them. ToAny reads the file's contents to detect the type, so a wrong extension does not matter.

  2. OGG is already chosen

    Press Convert. Open Options first if you want to change the defaults. The work happens in this tab.

  3. Download

    Save the OGG, or download everything as one ZIP if you converted several files.

Why ToAny

  • Private by construction

    The M4A to OGG converter is part of this page and runs inside your browser. Your audio files are never sent to ToAny or to anyone else.

  • No upload, no queue

    Nothing has to travel to a server and back, so the conversion starts the moment you press Convert, even on a slow connection.

  • Free, without an account

    No sign-up, no email address and no watermark. Add several files and download them together as a ZIP.

M4A to OGG: what to expect

M4A is refused by some car stereos, older players, editors and upload forms. Ogg is open and royalty-free, which game engines and open-source tools favour. M4A is at home in music and voice memos on Apple devices; OGG is the usual choice for royalty-free audio in games and on the web. Both formats are lossy, so the content is compressed a second time; start from the best copy you have.

The defaults suit most files. Under Options you can choose the bitrate and trim the start and end.

The conversion uses your browser's own video and audio codecs (WebCodecs), with hardware acceleration where the device has it; the file is read from disk as it goes and can be up to 2 GB. Where the browser lacks a codec, the page falls back to the compatibility engine. OGG is written at 160 kbps unless you choose another bitrate.

M4A vs OGG

M4A

M4A audio

M4A is an MP4 file that contains only audio, usually AAC. iPhone Voice Memos and the iTunes Store use it. It sounds better than MP3 at the same size but is not accepted everywhere MP3 is.

Opens in Apple devices, Android, current browsers; some car stereos and older players do not

M4A converter
OGG

Ogg audio

Ogg is an open container, most often holding Vorbis audio. Games, Linux software and Wikipedia use it because it is free of patents. Apple's players do not support it natively.

Opens in Chrome, Firefox, Android, VLC; Apple devices need extra software

OGG converter
M4A compared with OGG
M4AM4A audioOGGOgg audio
Stands forMPEG-4 AudioOgg
TypeAudioAudio
CompressionLossy (AAC); lossless when it holds ALACLossy
Usually containsAAC, sometimes Apple LosslessVorbis or Opus
IntroducedThe early 2000s, by the Moving Picture Experts Group (popularised by Apple)2002, by the Xiph.Org Foundation
Opens inApple devices, Android, current browsers; some car stereos and older players do notChrome, Firefox, Android, VLC; Apple devices need extra software
Best forMusic and voice memos on Apple devicesRoyalty-free audio in games and on the web
File extension.m4a.ogg, .oga

Questions

Are my audio files uploaded anywhere?

No. The M4A to OGG conversion runs inside your browser, on your own phone or computer. The file is not sent to ToAny or to anyone else.

Does converting M4A to OGG reduce quality?

OGG is a lossy format, so a small amount of detail is traded for a smaller file. At the default setting the difference is hard to notice. You can choose the bitrate under Options.

Can I convert several M4A files at once?

Yes. Add as many as you like, convert them together and download each result or all of them as one ZIP.

How do I convert M4A to OGG on Windows, Mac, iPhone or Android?

The steps are the same everywhere because ToAny runs in the web browser: open this page in a current version of Chrome, Edge, Safari or Firefox, add the M4A file, press Convert and save the OGG. There is nothing to install.

Is there a file size limit?

Yes. Files up to 2 GB are accepted. Beyond that the limit is your device's memory, since nothing is uploaded; a computer copes with large files better than a phone.