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Kid3 vs eyeD3: catalog facts
Kid3	eyeD3
Free Free and open source. Hosting, hardware and any external services are separate.	Free Free to use under the GPL-3.0 license.
Windows, macOS, Linux, Android	Command line
Supports multiple audio tag formats Can rename files using tag information	Reads and edits ID3v1 and ID3v2.3 and 2.4 tags Reports MP3 playback and encoding details
Tagging changes metadata rather than repairing the audio itself.	Works with MP3 files rather than a broad range of audio formats Requires Python 3.9 or later
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: GPL-3.0
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked October 8, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.