Wikis

Obsidian is a note-taking app that lets you create a personal knowledge graph with ease. It is designed for non-linear thinking and allows you to easily link your notes together wiki-style.

Free content, multilingual online encyclopedia written and maintained by a community of volunteers through a model of open collaboration, using a wiki-based editing system.

Local-first, privacy-focused notebook supporting Markdown and Org mode, offline use, encrypted backup, extensible with plugins, and more.

Organizes notes, tasks, and projects offline using Markdown, P2P syncing, and encrypted storage, complemented by dynamic collections on all devices.

Streamline teamwork with real-time collaboration, drag-and-drop content organization, and visual simplicity across notes, tasks, wikis, and databases.

AppFlowy is an open source alternative to Notion. You are in charge of your data and customizations.

A free Git source code hosting service with the objective to give the open-source code that is running our world a safe and friendly home, and to ensure that code remains free and secure forever.

Zim brings the concept of a wiki to your desktop. Store information, link pages and edit with WYSISYG markup or directly typing some lightweight markup syntax and see it previewed as-you-type. Creating a new page is easy by either clicking on the "Create new note"...

TiddlyWiki is a single html file with all the characteristics of a wiki - including all of the functionality (including editing, saving, tagging and searching) and the style sheet. Because its a single file, its very portable - you can email it, put it on a web server or share...

A cross-platform Markdown editor providing real-time preview, Focus & Typewriter modes, and support for multiple export formats.

Kiwix enables you to have the whole Wikipedia at hand wherever you go! You don't need Internet, everything is stored on your computer, USB flash drive or DVD!.

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

Ibis is a federated encyclopedia which uses the ActivityPub protocol, just like Mastodon or Lemmy. Users can create, browse, edit articles and use many other features. If you want to start a wiki for a TV series, a video game, or an open source project, then Ibis is for you!

MediaWiki is a free software wiki package written in PHP, originally for use on Wikipedia. It is now used by several other projects of the non-profit Wikimedia Foundation and by many other wikis.

BookStack is a free and open source knowledge management platform built on PHP. The system has been built around simplicity to ensure that adding information to it is not a chore. The content structure is built on the metaphors of Books, Chapters & Pages.

Dendron is an open-source, local-first, markdown-based, note-taking tool built on top of VSCode. It supports all the usual features you would expect like tagging, backlinks, a graph view, split panes, and so forth.

Open source software offering project timelines, issue tracking, and document management with robust security and flexible management options.

Grokipedia is an online encyclopedia created by xAI that positions itself as an alternative to Wikipedia. Articles are generated and later labeled as “fact checked by .

The easiest, fastest, and most painless way of setting up a self-hosted Git service. With Go, this can be done with an independent binary distribution across ALL platforms that Go supports, including Linux, Mac OS X, Windows and ARM.

Wikiversity is a Wikimedia Foundation project devoted to learning resources, learning projects, and research for use in all levels, types, and styles of education from pre-school to university, including professional training and informal learning.

Tomboy is a desktop note-taking application for Linux, Unix, Windows, and Mac OS X. Simple and easy to use, but with potential to help you organize the ideas and information you deal with every day.

Mimiri Notes provides a safe place to store your notes, passwords, and confidential data with strong encryption and real-time synchronization across all your devices.

DokuWiki is a standards compliant, simple to use Wiki, mainly aimed at creating documentation of any kind. It is targeted at developer teams, workgroups and small companies. It has a simple but powerful syntax which makes sure the datafiles remain readable outside the Wiki and...

Nuclino is a unified workspace where teams can bring all their knowledge, docs, and projects together in one place. It’s a modern, simple, and blazingly fast way to collaborate, without the chaos of files and folders, context switching, or silos.

Wikibooks is a Wikimedia community for creating a free library of educational textbooks that anyone can edit.