No moat. Still in business.

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A simple self-hosted wiki that stores markdown pages in git, with file attachments and full page history.

Free · Notes and knowledge

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Free self-hosted wiki that lets a team organise its documentation into shelves, books and pages.

Since 2022

Free · Notes and knowledge

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Open-source shared editor and headless CMS for writing technical docs, dev blogs and knowledge bases, with Git sync.

Notes and knowledge · Developers

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Write product documentation and user manuals in Markdown and publish them as a website, PDF or eBook.

Free plan · Website builders · Software companies

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Saves what you work out in AI chats as searchable documents that Claude, ChatGPT, Cursor and other MCP tools can read later.

Since 2026

Free plan · Notes and knowledge · Developers

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WordPress plugin for writing and organising product docs, wikis and help centres, with search and an AI chatbot.

Free plan · Customer support

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A self-hosted knowledge base that serves Markdown files as searchable, editable docs for teams.

Free · Notes and knowledge

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Simple private diary with one page per day, photo uploads and export, free to use or run on your own server.

Since 2026

Free · Notes and knowledge · Individuals and families

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Open-source wiki software you host yourself so a team can write and share its internal documentation.

Free · Notes and knowledge

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Simple hosted wikis where teams or individuals write and share docs, public or private, with their own branding.

Since 2014

Free plan · Notes and knowledge

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A light, multilingual wiki you install yourself so teams or schools can write and share documentation together.

Free · Notes and knowledge

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WordPress plugin for building a wiki, help centre or team knowledge base with frontend editing and access control.

Free trial · Customer support

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A markdown notes app you run in one Docker container, with multiple organisations, themes and no tracking.

Free · Notes and knowledge · Individuals and families