How to convert Ogg Vorbis to M4A (AAC/ALAC)
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Upload your file
Drag and drop a file or click to select one. Keep this page open while the file uploads and converts.
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Convert Ogg Vorbis to M4A (AAC/ALAC)
NexMedia converts Ogg Vorbis to M4A (AAC/ALAC) on its own servers. Processing time depends on the file size and how busy the queue is.
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Download the converted file
When the conversion finishes, the download appears on this page. Your converted file is kept for 2 hours, then deleted.
About Ogg Vorbis
Ogg Vorbis is the open, royalty-free Vorbis audio codec in the Ogg container, developed by the Xiph.Org Foundation.
Games, open-source software and music streaming; Spotify has streamed its music in Ogg Vorbis.
Apple devices have limited support for Ogg Vorbis, and many car stereos do not play it.
Convert Ogg Vorbis to M4A online free, no account required — M4A is an MPEG-4 audio file, usually holding AAC.
Change Ogg Vorbis to M4A without losing quality — convert Ogg Vorbis to M4A free in your browser.
Why can't I add my OGG music to iTunes or play it on an iPhone? Apple's ecosystem has never supported the open format natively, so converting to AAC or MP3 is the only way in.
About M4A (AAC/ALAC)
M4A is an MPEG-4 audio file: the MP4 container holding only audio, usually AAC and sometimes Apple Lossless (ALAC).
Music bought on iTunes, iPhone voice memos and many podcast downloads.
Whether an M4A is lossy or lossless depends on the codec inside, which the file extension does not show.
Why convert audio to M4A? It wraps efficient AAC audio with chapter marks and cover art in one small file that Apple, Android and Windows all play.
What changes when you convert Ogg Vorbis to M4A
- The audio is decoded and re-encoded as M4A at the default settings, so the result is close to the Ogg Vorbis but not bit-identical.
Settings you can change
Before you convert Ogg Vorbis to M4A, you can adjust: Audio codec, Rate control, Audio bitrate, Quality (VBR), Sample rate, Channels, Normalize loudness, Trim start, Trim duration, and Keep tags.
Limits
Each plan sets a maximum file size and a number of conversions per day, and video and audio files also have a maximum length. Guests can convert files up to 100 megabytes and 5 per day; a free account raises this to 500 megabytes and 25 per day; paid plans go up to 100 gigabytes.
Your converted M4A file is kept for 2 hours, then deleted.
Ogg Vorbis to M4A: questions and answers
Does converting Ogg Vorbis to M4A reduce quality?
The audio is decoded and re-encoded as M4A at the default settings, so the result is close to the Ogg Vorbis but not bit-identical.
What is the difference between Ogg Vorbis and M4A?
Ogg Vorbis is an open, royalty-free lossy audio format. M4A is an MPEG-4 audio file, usually holding AAC.
Can I change the settings when converting Ogg Vorbis to M4A?
Before you convert Ogg Vorbis to M4A, you can adjust: Audio codec, Rate control, Audio bitrate, Quality (VBR), Sample rate, Channels, Normalize loudness, Trim start, Trim duration, and Keep tags.
Do I need an account to convert Ogg Vorbis to M4A?
No. You can convert Ogg Vorbis to M4A without an account; signing in raises the file-size and daily limits.
How long is my converted M4A file kept?
The M4A file you convert from Ogg Vorbis is kept for 2 hours, then deleted automatically.
When I convert Ogg Vorbis to M4A, is the audio re-encoded?
The audio is decoded and re-encoded as M4A at the default settings, so the result is close to the Ogg Vorbis but not bit-identical.
Will converting Ogg Vorbis to M4A change my original file?
No. The conversion reads your Ogg Vorbis and writes a new M4A file, leaving your original Ogg Vorbis file untouched.