Wiki and knowledge base software in 2026

Commercial wiki and knowledge base software

1. 1
   Notion Notion Labs

   Build Custom Agents, search across all your apps, and automate busywork. The AI workspace where teams get more done, faster.

   Complete system Production-ready A small or mid-size team wants one flexible tool for docs, wiki and light project tracking.

   4.1k readers a month Since 2016 Commercial
2. 2
   Confluence Atlassian

   Confluence is your team workspace for creating and sharing knowledge. Use AI to draft, summarize, and find answers so projects move faster.

   Complete system Production-ready Your teams already use Jira and need a shared documentation space that links to tickets.

   919 readers a month Commercial
3. 3
   Guru Guru Technologies

   Stop running your business on confidently wrong AI. Guru structures, governs, and continuously improves your knowledge—so every AI answer can be trusted.

   Complete system Production-ready Support or sales teams need accurate, owner-verified answers available where they already work.

   Commercial
4. 4
   Slab Slab

   Discover why our easy creation, organization, and numerous integrations, make us so popular with non-technical and tech-savvy teams alike.

   Complete system Production-ready A small or mid-size team wants a simpler, tidier wiki than Confluence or Notion.

   Commercial
5. 5
   Document360 Kovai.co

   Start building intelligent documentation today with AI search, AI chatbot, and writing tools inside Document360, the knowledge base trusted by teams worldwide.

   Complete system Production-ready A software company needs a branded customer help centre with structured articles and search.

   Commercial
6. 6
   GitBook GitBook

   GitBook is a knowledge platform that connects your docs, product and users, answers user questions, and identifies knowledge gaps. Docs-as-code support & AI insights included.

   Complete system Production-ready A software product team wants polished public docs that engineers can edit through Git and others through the browser.

   Commercial

Open-source wiki and knowledge base software

Complete systems you can adopt 7

1. 1
   Requarks Wiki requarks

   Wiki.js | Next Generation Open Source Wiki

   Complete system Production-ready A team wants a polished self-hosted wiki for internal documentation.

   ★ 29k AGPL-3.0 TypeScript Active, pushed today
2. 2
   Docmost docmost

   Docmost is an open-source collaborative wiki and documentation software. It is an open-source alternative to Confluence and Notion.

   Complete system Usable A team wants Confluence-style documentation it can self-host on Postgres.

   ★ 22k AGPL-3.0 TypeScript Active, pushed today
3. 3
   BookStack BookStackApp

   NOW MANAGED ON CODEBERG

   Complete system Production-ready You want a simple, stable self-hosted documentation wiki that non-technical staff can use.

   ★ 19k MIT PHP Active, pushed today
4. 4
   Suitenumerique Docs suitenumerique

   Docs is an open-source text editor: web-native, made for real-time collaboration, cleanly structured documents and sub-documents with full ownership of your data. Built to scale with Django and React.

   Complete system Usable An organisation, especially in the public sector, wants a self-hosted Notion-like editor under its own control.

   ★ 17k MIT TypeScript Active, pushed today
5. 5
   OneDev theonedev

   The Unified and Autonomous Development Platform

   Complete system Production-ready A team wants an all-in-one GitLab alternative that is lighter to run.

   ★ 15k MIT Java Active, pushed 2 days ago
6. 6
   PandaWiki chaitin

   PandaWiki 是一款 AI 大模型驱动的开源知识库搭建系统，帮助你快速构建智能化的 产品文档、技术文档、FAQ、博客系统，借助大模型的力量为你提供 AI 创作、AI 问答、AI 搜索等能力。

   Complete system Usable A Chinese-speaking team wants a self-hosted documentation site with an AI assistant built in.

   ★ 10k AGPL-3.0 TypeScript Active, pushed 13 days ago
7. 7
   DokuWiki dokuwiki

   The DokuWiki Open Source Wiki Engine

   Complete system Production-ready You want a low-maintenance wiki that runs on basic PHP hosting and is easy to back up.

   ★ 4.7k GPL-2.0 PHP Active, pushed 34 days ago

Integrations 1

1. 1
   Claude-obsidian AgriciDaniel

   Self-organizing AI second brain for Obsidian + Claude Code. Drop any source and Claude reads, links, and files it into one connected knowledge graph of plain Markdown you own. AI note-taking, personal knowledge management (PKM), and an open-source Notion alternative. Based on Karpathy's LLM Wiki pattern.

   Integration Experimental You use Obsidian and Claude Code and want Claude to organise your notes for you.

   ★ 16k MIT Python Active, pushed 8 days ago

Developer tools 2

1. 1
   DeepWiki-Open AsyncFuncAI

   Open Source DeepWiki: AI-Powered Wiki Generator for GitHub/Gitlab/Bitbucket Repositories. Join the discord: https://discord.gg/gMwThUMeme

   Developer tool Experimental You want AI-written overview documentation for a codebase you host, using your own model keys or Ollama.

   ★ 18k MIT Python Active, pushed 5 days ago
2. 2
   Quarkdown iamgio

   🪐 Markdown with superpowers: from ideas to papers, presentations, websites, books, and knowledge bases.

   Developer tool Usable You write papers, books or presentations and want Markdown with LaTeX-like layout control.

   ★ 16k GPL-3.0 Kotlin Active, pushed yesterday

All 30 open-source wiki and knowledge base projects

Compared head to head

Looking for an alternative to

Open-source licenses

• Permissive: 20. Use it anywhere, including in closed products. You keep the copyright notice; Apache-2.0 also grants patent rights.
• Network copyleft: 5. Like GPL, and running a changed version as a web service counts as distributing it, so its users get the source too.
• Strong copyleft: 4. If you distribute the program or anything built on it, you must release the whole source under the same license.
• Weak copyleft: 1. Changes to the licensed files must be shared, but you can link them into a closed program.

Languages

TypeScript 9, Python 4, JavaScript 4, PHP 2, Kotlin 2, Vue 2, Go 2, Java 1, C++ 1, Ruby 1 and HTML 1.