Kid3 Overview
Kid3 is a free, open-source audio tag editor for Windows, macOS, and Linux that focuses on efficient, precise editing of metadata in music files. It edits tags across many formats — MP3 (ID3v1 and ID3v2), FLAC, Ogg/Vorbis, Opus, AAC, and more — and is strong at batch operations: setting tags for many files at once, generating tags from filenames or filenames from tags, and importing metadata from online databases like MusicBrainz and Discogs. It also supports a command-line interface and scripting for automation. Its accuracy with multiple tag formats makes it a favorite for users who want fine control over their library's metadata. The offline installer bundles everything Kid3 needs, so installation completes without a connection. It can also embed and extract album art, and synchronized-lyrics support helps prepare files for players that display them. This page points to the genuine Kid3 source from Kid3, not a third-party host.