# mono/taglib-sharp

Library for reading and writing metadata in media files

Repository: https://github.com/mono/taglib-sharp
Canonical: https://ross.abutalabs.com/products/taglib-sharp
Language: C#
License: LGPL-2.1
License Family: copyleft
Last push: 2025-05-31T22:43:20+00:00

## Health v2 (maintenance only)
Score: 34/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 24, release rhythm 8, longevity 100
- inputs: {"age_days": 5886, "days_push": 459, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1457, forks 334 (observed 2026-08-28T04:04:46.995733+00:00)

## What it is
TagLib# is a .NET library for reading and writing metadata tags in media files, supporting video, audio, and image formats. It provides a unified API to read, write, and create standard or custom tags across many container formats.

## Use cases
- read mp3 id3 tags in c#
- write metadata to video files like mkv or mp4
- edit flac vorbis comments programmatically
- extract duration and title from media files
- read exif metadata from jpeg photos
- add custom tag fields to ogg files
- tag a large music library from a .net app

## When to choose
- you need a stable, format-agnostic metadata API in .NET
- you must handle audio, video, and image tags with one library
- you need custom tag field support across formats

## When to avoid
- you need to decode or transcode media, not just metadata
- you work outside the .NET ecosystem
- you need streaming or network media metadata handling

## Facets
- artifact type: library
- maturity: stable
- function: serialization, file-system
- domain: media, files, developer-tools
- platform: cross-platform, windows
- tags: metadata, tagging, media-files, dotnet, audio-tags, video-tags, exif, linux, macos

## Member repositories
- mono/taglib-sharp (main) score 34

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:46.995733+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 2026-08-30T04:35:33.893316+00:00, confidence not recorded.
  - readme: https://github.com/mono/taglib-sharp (fetched 2026-08-28T04:04:46.995733+00:00, sha 6b013d71e290)
- Data as of 2026-08-30T08:39:29.467469+00:00.