libmp4tag

An MP4 tagging library where all tags can be accessed and modified. Any tags, unknown tags or custom tags are never lost when the audio or video file is updated.

Features

Known, unknown and custom tags are never lost.
Includes a command line utility to modify MP4/M4A tags.
Will update tags in-place if there is space available. Otherwise the entire file is re-written.

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License

zlib/libpng License

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weltyj Posted 2025-08-11

Wow. Just what I needed. A commandline tagger for mp4 files, that understands custom tags too. Well documented. Thank you! Jeff Welty

Additional Project Details

Operating Systems

BSD, Linux, Mac, Windows

Intended Audience

Developers

Programming Language

Related Categories

C Tag Editors

Registered

2023-08-17

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