20 self-hosted HackMD alternatives

Open-source alternative to Jira/Linear for tasks, cycles, docs and analytics; offers cloud and self-hosted deployments.

58.4k stars5.5k forksAGPL-3.0last commit 26 Aug 2026Actively maintained

Joplin is an offline-first, privacy-focused note and to-do app with end-to-end encryption, Markdown support, web clipping, and sync across desktop and mobile.

56.1k stars6.2k forkslast commit 26 Aug 2026Actively maintained

Open-source hierarchical notes and personal knowledge base with rich editing, full-text search, encryption, scripting, and optional self-hosted sync and web access.

37.6k stars2.5k forksAGPL-3.0last commit 26 Aug 2026Actively maintained

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 26 Aug 2026Actively maintained

Open-source collaborative documentation and wiki platform with real-time editing, offline sync, export features and flexible self-hosting options.

16.8k stars620 forksMITlast commit 31 Jul 2026Actively maintained

TiddlyWiki is a self-contained, highly customizable personal wiki that runs in the browser or on Node.js, enabling notes, knowledge bases, and documentation in one file.

8.6k stars1.3k forkslast commit 25 Aug 2026Actively maintained

Open-source, web-based collaborative Markdown editor for real-time notes, diagrams, and slide presentations with revisions and access controls.

7.4k stars590 forksAGPL-3.0last commit 9 Aug 2026Actively maintained

Standard Notes is an end-to-end encrypted notes app with secure file storage, offline access, and cross-platform sync, with optional self-hosting of the sync server.

6.6k stars548 forksAGPL-3.0last commit 25 Aug 2026Actively maintained

Self-hosted, database-less note-taking web app that stores notes as plain Markdown files in a folder, with tagging, wiki links, and full-text search.

3.2k stars206 forksMITlast commit 2 Aug 2026Actively maintained

Open source architecture documentation tool to model and document domains, services, events, and schemas for event-driven and microservice systems.

2.8k stars272 forkslast commit 24 Aug 2026Actively maintained

Lightweight, privacy-focused self-hosted Markdown notes app with wikilinks, graph view, tags, templates, search, Mermaid diagrams, LaTeX math, and optional password protection.

2.8k stars234 forksMITlast commit 25 Aug 2026Actively maintained

Self-hostable note-taking and knowledge base app with an extended Markdown editor, fast search, tagging, workspaces, sharing permissions, exports, and offline PWA support.

2.4k stars163 forksMITlast commit 26 Aug 2026Actively maintained

A minimalist, fast in-browser text editor with live Markdown preview, optional LaTeX/Math rendering, and export/print to PDF—runs fully offline with no server.

1.1k stars84 forkslast commit 10 Aug 2022Likely dormant

Open-source, self-hosted note-taking and documentation app with rich text & Markdown editors, search, attachments, workspaces, REST API and OIDC support.

769 stars31 forksMITlast commit 25 Aug 2026Actively maintained

Note Mark is a fast, minimal web-based Markdown notes app with a responsive UI, notebook sharing, attachments, and optional OIDC single sign-on.

761 stars27 forksAGPL-3.0last commit 10 Aug 2026Actively maintained

Nextcloud Notes is a distraction-free note-taking app with Markdown support, favorites, and a REST API. Notes are stored as files in your Nextcloud for easy syncing.

734 stars161 forksAGPL-3.0last commit 27 Aug 2026Actively maintained

Go-based flat-file wiki that stores content as Markdown with built-in search, version history, and access control, without an external database.

614 stars52 forksGPL-3.0last commit 21 Aug 2026Actively maintained

Self-hosted Google Keep–style notes app built with Vite + React and an Express + SQLite API. Supports Markdown, checklists, images, PWA, collaboration and Docker deployment.

599 stars52 forksMITlast commit 14 Jan 2026Slowing down

Lightweight filesystem wiki engine using Git for history and Mycomarkup for content, suited for personal wikis, digital gardens and small teams.

379 stars27 forksAGPL-3.0last commit 3 Sept 2025Slowing down

Web app and API server that publishes Markdown notes as websites and exposes REST APIs for programmatic access, with Obsidian-flavored Markdown and full-text search.

180 stars3 forksMITlast commit 21 Oct 2024Likely dormant