# taglib/taglib

TagLib Audio Meta-Data Library

Repository: https://github.com/taglib/taglib
Canonical: https://ross.abutalabs.com/products/taglib
Homepage: http://taglib.org/
Language: C++
License: LGPL-2.1
License Family: copyleft
Last push: 2026-08-21T03:59:27+00:00

## Health v2 (maintenance only)
Score: 92/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 98, release rhythm 81, longevity 100
- inputs: {"age_days": 5655, "days_push": 12, "days_rel": 44, "gap_med": 65, "n_releases_24m": 6}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1447, forks 398 (observed 2026-08-28T04:04:45.396958+00:00)

## What it is
TagLib is a C++ library for reading, writing, and editing metadata (tags) of popular audio formats such as MP3, MP4, FLAC, Ogg, Opus, and WAV. It provides a clean object-oriented API that abstracts over different metadata containers like ID3v2 and Vorbis comments.

## Use cases
- read id3 tags from mp3 files
- edit audio file metadata in c++
- extract album art and track info from music files
- batch rename music files based on tags
- write vorbis comments to flac files
- build a music library organizer app
- parse metadata from wav and aiff files

## When to choose
- you need fast, native C++ audio tag reading and writing
- you must support many audio formats and metadata containers with one API
- you need a permissively licensed (LGPL/MPL) library usable in proprietary apps
- you are building a media player, tagger, or music organizer

## When to avoid
- you need a higher-level scripting solution (e.g. Python) without C++ bindings
- you only need to play audio, not read or edit its metadata
- you need to edit metadata of video files or non-audio formats

## Facets
- artifact type: library
- maturity: stable
- function: parser, file-system, developer-tools
- domain: media, files, developer-tools
- platform: cpp, cross-platform, windows
- tags: audio-metadata, id3, tags, flac, mp3, ogg, music-library, audio, linux, macos

## Member repositories
- taglib/taglib (main) score 92

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:45.396958+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T04:36:08.600630+00:00, confidence not recorded.
  - readme: https://github.com/taglib/taglib (fetched 2026-08-28T04:04:45.396958+00:00, sha ec37b4f7aecb)
  - homepage: http://taglib.org/ (fetched 2026-08-29T11:46:00.280320+00:00, sha 79fa07011523)
- Data as of 2026-08-30T08:39:29.467469+00:00.