No direct Veritas NIW replacements listed yet
Open-source documentation & wiki tools. To compare with Veritas NIW.
59 open-source documentation & wiki tools
AppFlowy
Note Taking
AppFlowy is the AI collaborative workspace where you achieve more without losing control o
AGPL-3.0vs Notion★ 77k
Typst
Docs & Wikis
A markup-based typesetting system that is powerful and easy to learn.
Apache-2.0★ 56k
Pandoc
Docs & Wikis
Universal markup converter
GPL-2.0vs HelpNDoc★ 47k
Outline
Docs & Wikis
The fastest knowledge base for growing teams. Beautiful, realtime collaborative, feature p
OSSvs Confluence★ 41k
Wiki.js
Docs & Wikis
Wiki.js | Next Generation Open Source Wiki
AGPL-3.0vs Confluence★ 29k
Docmost
Docs & Wikis
Replace Confluence and Notion with secure on-premise documentation. ITAR, FedRAMP, and GDP
AGPL-3.0vs Confluence★ 22k
BookStack
Docs & Wikis
bookstack - A platform to create documentation/wiki content built with PHP & Laravel
MITvs Confluence★ 19k
Etherpad
Docs & Wikis
Etherpad: A modern really-real-time collaborative document editor.
Apache-2.0vs Google Docs★ 19k
Overleaf
Docs & Wikis
A web-based collaborative LaTeX editor
AGPL-3.0vs Microsoft Word★ 18k
La Suite Docs
Docs & Wikis
Docs is the open-source document editor that turns your team
MITvs Notion★ 17k
Quarkdown
Docs & Wikis
🪐 Markdown with superpowers: from ideas to papers, presentations, websites, books, and kn
GPL-3.0vs HelpNDoc★ 16kClaude Obsidian
Note Taking
Self-organizing AI second brain for Obsidian + Claude Code. Drop any source and Claude rea
MITvs Notion★ 15k
PandaWiki
Docs & Wikis
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、A
AGPL-3.0vs GitBook★ 10k
TiddlyWiki
Note Taking
A self-contained JavaScript wiki for the browser, Node.js, AWS Lambda etc.
OSSvs Notion★ 8.7k
CryptPad
Productivity
Collaborative office suite, end-to-end encrypted and open-source.
AGPL-3.0vs Google Docs★ 8k
HedgeDoc
Docs & Wikis
HedgeDoc - Ideas grow better together
AGPL-3.0vs Google Docs★ 7.5k
DeepWiki-Open
AI Tools
Grok-Wiki is a local-first desktop workspace for repository wikis, Ask sessions, generated
MITvs Swimm★ 18k
SilverBullet
Note Taking
The malleable knowledge base for you and your team. Powered by Markdown and Lua.
MITvs Obsidian★ 6.2k
Scanopy
Networking & VPN
Scanopy discovers your network (SNMP, LLDP, ARP) and builds living network diagrams automa
AGPL-3.0vs IT Glue★ 5.8k
MediaWiki
Docs & Wikis
🌻 The collaborative editing software that runs Wikipedia. Mirror from https://gerrit.wiki
OSSvs Confluence★ 5.2k
Liam ERD
Database Tools
Automatically generates beautiful and easy-to-read ER diagrams from your database.
Apache-2.0vs dbdiagram.io★ 5.1k
DokuWiki
Docs & Wikis
The DokuWiki Open Source Wiki Engine
GPL-2.0vs Confluence★ 4.7k
TeXstudio
Docs & Wikis
TeXstudio is a fully featured LaTeX editor. Our goal is to make writing LaTeX documents as
GPL-3.0★ 3.7k
Collabora Online
Productivity
Issue tracker only. Active development is on Gerrit at https://gerrit.collaboraoffice.com/
OSSvs Microsoft 365★ 3.4k
Cortex Docs
API Tools
Cortex - Generates interactive API documentation, typed SDKs, and MCP servers from OpenAPI
MITvs Mintlify★ 3.2k
MrDoc
Docs & Wikis
mrdoc,online document system developed based on python. It is suitable for individuals and
GPL-3.0vs Confluence★ 3.2k
Alexandrie
Note Taking
📚 The open-source, offline-first Notion, Obsidian & Confluence alternative. Advanced Mark
MITvs Notion★ 2.8k
ONLYOFFICE Docs
Productivity
ONLYOFFICE Docs is a free collaborative online office suite comprising viewers and editors
AGPL-3.0vs Microsoft 365★ 7k
Gollum
Docs & Wikis
A simple, Git-powered wiki with a local frontend and support for many kinds of markup and
MITvs Confluence★ 14k
LLM Wiki Compiler
Docs & Wikis
The knowledge compiler. Raw sources in, interlinked wiki out. Inspired by Karpathy's LLM W
MIT★ 2.2k
Andesine
CMS
Open-source adaptive content workspace
OSSvs Hashnode★ 2k
Otterwiki
Docs & Wikis
A minimalistic wiki powered by python, markdown and git.
MITvs Confluence★ 1.6k
VimWiki
Note Taking
Personal Wiki for Vim
OSSvs Obsidian★ 9.5k
GROWI
Docs & Wikis
:anchor: GROWI - Team collaboration software using markdown
MITvs Confluence★ 1.5kEngineerCMS
Docs & Wikis
工程师知识管理系统：基于golang语言（beego框架），支持分布式文件存储minio集群部署。engineercms为土木工程师基于web的知识管理系统。管理个人、工程项目资料
Apache-2.0★ 1.4k
LLM Wiki
AI Tools
LLM-compiled knowledge bases for any AI agent. Parallel multi-agent research, thesis-drive
MIT★ 1.4k
XWiki
Docs & Wikis
The XWiki platform
LGPL-2.1vs Confluence★ 1.3k
LeafWiki
Docs & Wikis
LeafWiki - Self-hosted wiki. Single Go binary, SQLite, Markdown on disk. No external datab
MITvs Confluence★ 1.2k
Crowi
Docs & Wikis
Crowi - The Markdown Wiki - Empower the team with sharing your knowledge
MITvs Confluence★ 1.1k
Flowershow
CMS
💐 Publish markdown (and html) websites, docs, wikis and websites in seconds. Integrates w
AGPL-3.0vs Obsidian★ 1.1k
Teedy
File Storage & Sharing
Lightweight document management system packed with all the features you can expect from bi
GPL-2.0vs Box★ 2.6k
Colanode
Docs & Wikis
Open-source and local-first Slack and Notion alternative that puts you in control of your
Apache-2.0vs Notion★ 5.2k
KiwiFS
AI Infrastructure
Markdown filesystem for agents and teams.
OSS★ 631
Semantic MediaWiki
Docs & Wikis
🔗 Semantic MediaWiki turns MediaWiki into a knowledge management platform with query and
OSS★ 634
Gramax
Docs & Wikis
Embrace a docs-as-code approach to build, version, and publish Git-driven documentation si
GPL-3.0vs GitBook★ 608
pi-llm-wiki
AI Tools
Self-maintaining, Obsidian-compatible knowledge base for pi — turn raw sources into an int
MIT★ 604
Trac
Project Management
Trac is an enhanced wiki and issue tracking system for software development projects (mirr
OSSvs Jira★ 545
Wikidocs
Docs & Wikis
📗 Just a databaseless markdown flat-file wiki
MITvs Confluence★ 528
Raneto
Docs & Wikis
Markdown powered Knowledgebase Wiki for Node.js
MITvs GitBook★ 2.9k
CodeAlmanac
Docs & Wikis
A codebase wiki for AI coding agents. Captures what the code can't say: decisions, flows,
Apache-2.0vs Swimm★ 998
Documize
Docs & Wikis
Modern Confluence alternative designed for internal & external docs, built with Go + Ember
AGPL-3.0vs Confluence★ 2.4k
Matterwiki
Docs & Wikis
A simple and beautiful wiki for teams
MITvs Confluence★ 2.1k
Plots2
Forums & Communities
a collaborative knowledge-exchange platform in Rails; we welcome first-time contributors!
GPL-3.0★ 1k
Markdown Site
CMS
An open-source publishing framework built for AI agents and developers to ship websites, d
MIT★ 628
Archivy
Note Taking
Archivy is a self-hostable knowledge repository that allows you to learn and retain inform
MITvs Obsidian★ 3.3kamWiki
Docs & Wikis
amWiki 是一款由 JS 开发、依赖 Atom 或 Nodejs-Npm 的 Markdown 轻量级前端化开源文库系统
MITvs GitBook★ 983
RedPen
Docs & Wikis
RedPen is an open source proofreading tool to check if your technical documents meet the w
Apache-2.0vs ProWritingAid★ 604
Wukong KnowledgeBase
Docs & Wikis
悟空知识库，提供全面的知识管理功能，您可以在知识库中编辑wiki信息，同时可以将知识库内容共享给同事，进行协同创作。
OSSvs Confluence★ 607
Teamlinker
Project Management
Teamlinker is a team collaboration platform that integrates multi-functional modules. User
GPL-3.0vs Jira★ 522
See every documentation & wiki tool or the Veritas NIW listing.