Convert m4a to ogg
Converted on your device. Files never leave this tab. Output tops out around 2 GB.
Nothing is uploaded
The converter runs inside this page. Cut your network after it loads and it still works.
No account, no daily limit
No sign-up, no daily limit, no watermark, no queue behind other people's files. Batch as many M4A files as you like.
Real OGG output
Encoded by ffmpeg, the same library the command-line tools use — not a renamed extension.
About M4A
MPEG-4 Audio
An audio-only MPEG-4 file, the format iTunes and Apple Music use. It usually holds lossy AAC and sometimes lossless ALAC. Use it for iPhones, Macs and iTunes libraries, where it plays and tags natively.
About OGG
Ogg Vorbis
Ogg is an open container from the Xiph.Org Foundation, and .ogg files usually hold Vorbis, a royalty-free lossy audio codec. Use it for games and open-source software that prefer a patent-free lossy format.