# mybb/mybb

MyBB is a free and open source forum software.

Repository: https://github.com/mybb/mybb
Canonical: https://ross.abutalabs.com/products/mybb
Homepage: https://mybb.com
Language: PHP
License: LGPL-3.0
License Family: copyleft
Topics: mybb, php, forum, mysql, sqlite, postgresql
Last push: 2026-08-21T17:22:21+00:00

## Health v2 (maintenance only)
Score: 83/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 98, release rhythm 54, longevity 100
- inputs: {"age_days": 5194, "days_push": 12, "days_rel": 97, "gap_med": 360, "n_releases_24m": 2}
- flags: no_readme
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1240, forks 438 (observed 2026-08-28T04:04:06.198953+00:00)

## What it is
MyBB is a free and open source PHP-based forum (bulletin board) application for hosting online communities. It includes an admin control panel, moderation tools, a plugin system with hooks, and a built-in theme/template editor.

## Use cases
- host an online community forum
- self-host a discussion board for my website
- run a support forum for my product
- create a community with themes and plugins
- moderate threads and posts with staff tools
- migrate from another forum software

## When to choose
- you want a mature, free, self-hosted PHP forum with plugin and theme ecosystems
- you need multilingual support and built-in moderation/admin tools
- you run a LAMP stack and want a classic bulletin board

## When to avoid
- you want a modern real-time chat platform instead of threaded forums
- you need a headless or API-first discussion backend
- you don't want to maintain PHP and a MySQL/PostgreSQL/SQLite server

## Facets
- artifact type: application
- maturity: stable
- function: web-framework, auth, plugin-system, templating
- domain: web-development, self-hosted, cms
- platform: php, self-hosted
- tags: forum-software, bulletin-board, community-platform, themes, moderation, multilingual, community, web-server, linux, mysql, postgresql

## Member repositories
- mybb/mybb (main) score 83

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:06.198953+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 2026-08-30T05:09:53.818865+00:00, confidence not recorded.
  - homepage: https://mybb.com (fetched 2026-08-29T12:20:42.748969+00:00, sha ae65da566fac)
  - site_page: https://docs.mybb.com/ (fetched 2026-08-29T12:20:42.751917+00:00, sha 74561c55ea76)
  - site_page: https://mybb.com/about/donations (fetched 2026-08-29T12:20:42.755588+00:00, sha 51083cf6830a)
  - site_page: https://mybb.com/about (fetched 2026-08-29T12:20:42.758011+00:00, sha b9a90aea39bf)
  - site_page: https://mybb.com/features/plugins (fetched 2026-08-29T12:20:42.761012+00:00, sha 90a91cf3e104)
  - site_page: https://mybb.com/features/themes (fetched 2026-08-29T12:20:42.763513+00:00, sha 35b89b9de6b7)
  - site_page: https://mybb.com/features/moderation (fetched 2026-08-29T12:20:42.765285+00:00, sha dfa8a0d8f71f)
  - site_page: https://mybb.com/features/administration (fetched 2026-08-29T12:20:42.766985+00:00, sha 75495fa38dda)
  - site_page: https://community.mybb.com/mods.php (fetched 2026-08-29T12:20:42.753817+00:00, sha fe7d573060df)
- Data as of 2026-08-30T08:39:29.467469+00:00.