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Local processing has no fixed file-size limit and depends on browser memory. Server limits: video 100 MB, other files 10 MB · Up to 5 files per batch
No registration · Free to useWhen to use this tool
OGG is a container; playback depends on the audio codec inside it. ALAC is Apple Lossless audio, commonly stored in an MP4 container.
Quality and output
FLAC and ALAC are lossless codecs. Audio can be preserved when sample rate, channels and bit depth remain compatible; check the output properties rather than assuming every source configuration is unchanged. Quality changes depend on the input and output formats. A format change cannot restore information already lost.
How to use
- Upload a valid OGG file.
- Run the conversion to ALAC.
- Download the result and check it before replacing your original.
Before you download
The ALAC audio is written inside an MP4 container, even though this route names the download .alac. Some players expect .m4a instead; verify compatibility with your player.