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M4A Compressor
Reduce M4A file size by re-encoding at a lower bitrate — entirely in your browser.
2 cores · low tier
Drop a file here or click to select
Format will be auto-detected
About M4A
M4A
MPEG-4 AudioAudio-only container using AAC codec. Standard format for iTunes/Apple Music purchases and podcast distribution.
Best for
iTunes/Apple MusicPodcastsAudiobooksApple ecosystem
Advantages
- + High quality AAC
- + Apple native
- + Chapters & metadata
- + Podcast standard
Limitations
- − Limited non-Apple support
- − Essentially AAC in MP4 container