#1
Outline is a fast, collaborative knowledge base for teams, featuring markdown docs, real-time editing, AI-powered search, and Slack integrations.
40.3k stars3.5k forkslast commit Actively maintained
10 self-hosted MangoApps Intranet alternatives
Cloud-based digital workplace and employee intranet for internal communications and collaboration. Provides company news, team and community spaces, employee directory, document and knowledge sharing, task and social features, and integrations with third‑party applications.
Alternatives to MangoApps Intranet
#2
A modern, extensible Node.js wiki with Markdown editing, powerful admin tools, multiple auth options, and support for popular SQL databases.
28.8k stars3.3k forksAGPL-3.0last commit Actively maintained
#3
Open-source team chat server with topic-based threading for focused, asynchronous, and real-time communication in distributed teams.
25.8k stars10.1k forksApache-2.0last commit Actively maintained
#4
Open-source Confluence/Notion alternative for team wikis and documentation with real-time editing, spaces, permissions, diagrams, and search.
21.5k stars1.5k forksAGPL-3.0last commit Actively maintained
BookStack is a simple documentation and wiki platform with a WYSIWYG and optional Markdown editor, full-text search, permissions, and integrated authentication.
19k stars2.4k forksMITlast commit Actively maintained
#6
Enterprise-grade open-source wiki platform for knowledge management, intranets and web applications.
1.3k stars661 forksLGPL-2.1last commit Actively maintained
#7
Tracim is an open-source collaboration suite offering threaded conversations, file sharing with versioning, collaborative pages, tasks and workspace organization.
275 stars40 forkslast commit Actively maintained
Lightweight PHP wiki engine offering WYSIWYG editing, per-page ACLs, revision control, themes, file uploads, and support for MariaDB/MySQL/SQLite.
55 stars10 forksBSD-3-Clauselast commit Actively maintained
MediaWiki is an open source wiki engine for building collaborative knowledge bases with versioned pages, templates, categories, and a powerful extension system.
Activity unknown
#10
WikiSuite is an integrated open source suite combining wiki/groupware, chat and conferencing, webmail, search, and infrastructure management for organizations.
Activity unknown
What replacing MangoApps Intranet actually involves
Every option on this page is open source and free to run on your own hardware, so you own the data and there is no subscription to cancel. 8 of 10 shipped a commit in the last six months. Licences in this list: AGPL-3.0, Apache-2.0, MIT, LGPL-2.1, BSD-3-Clause. In exchange you take on hosting, backups and updates yourself.
Browse everything in Wikis & Knowledge Bases.
