# danbooru/danbooru

A taggable image board written in Rails.

Repository: https://github.com/danbooru/danbooru
Canonical: https://ross.abutalabs.com/products/danbooru
Language: Ruby
License: NOASSERTION
License Family: other
Topics: rails, ruby, booru, danbooru, imageboard, anime
Last push: 2026-08-26T19:52:57+00:00

## Health v2 (maintenance only)
Score: 67/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 8, longevity 100
- inputs: {"age_days": 6054, "days_push": 7, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2791, forks 447 (observed 2026-08-28T04:07:22.069744+00:00)

## What it is
Danbooru is a taggable image board web application written in Ruby on Rails, the software behind the well-known anime image board. It supports image uploads, tagging, search, and community moderation features, and can be self-hosted via Docker.

## Use cases
- self-host an anime image board
- run a booru-style image site with tag-based search
- host and organize large image collections with tags
- contribute to or fork the Danbooru imageboard software
- deploy a community image sharing site with moderation tools

## When to choose
- you want a full-featured, battle-tested imageboard with tagging and search
- you need the exact Danbooru feature set or want to contribute to it
- you are comfortable running Rails apps and Docker

## When to avoid
- you need a lightweight gallery without imageboard features
- you want a non-Ruby stack or a simple plug-and-play CMS
- you cannot run Docker or manage Rails dependencies and cloud services

## Facets
- artifact type: application
- maturity: active
- function: web-framework, search-engine, image-processing, file-upload
- domain: web-development, media, self-hosted
- platform: ruby
- tags: imageboard, booru, anime, rails, tagging, image-hosting, web-server, docker, linux

## Member repositories
- danbooru/danbooru (main) score 67

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:22.069744+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 2026-08-30T08:15:16.099453+00:00, confidence not recorded.
  - readme: https://github.com/danbooru/danbooru (fetched 2026-08-28T04:07:22.069744+00:00, sha a4c225d09765)
- Data as of 2026-08-30T08:39:29.467469+00:00.