Open-source alternatives to Hedgedoc

This project is a self-hosted note-taking platform and collaborative markdown wiki. It functions as a real-time markdown collaborative editor, allowing multiple users to create, organize, and share documents simultaneously. The platform is designed for self-hosted knowledge management and collaborative markdown documentation, providing a private environment for teams to maintain shared technical notes.

Etherpad-lite is a web-based platform designed for real-time collaborative text editing. It enables multiple users to view and modify the same document simultaneously, utilizing an operational transformation engine to synchronize content across all connected client sessions. The platform distinguishes itself through a modular, plugin-based architecture that allows for the integration of third-party extensions to introduce custom functionality. It provides a comprehensive programmatic interface for document management, allowing users to automate the creation, update, and retrieval of text docu

Gollum is a Git-powered wiki engine and content management system that provides a web-based interface for editing and organizing files stored in a Git repository. It functions as a self-hosted documentation tool, using a Git-based storage backend to manage page content and track version history. The system is characterized by a pluggable markup rendering architecture that converts multiple markup languages and specialized notations into HTML. It supports a wide array of rich content, including mathematical typesetting, BibTeX bibliographies, and diagrams rendered via Mermaid. Broad capabilit

Tinyauth is an authentication middleware service and identity provider that verifies user identities to grant system access. It operates as a standalone server or as an authentication gateway, utilizing a reverse proxy model to intercept requests and validate credentials before traffic reaches protected backend services. The project functions as an OpenID Connect provider for single sign-on experiences and an OAuth 2.0 gateway that delegates verification to external providers such as Google and GitHub. It also acts as an LDAP authentication server, allowing for centralized user management and

Leantime is an open-source project management platform designed to track tasks, milestones, and workflows using Kanban boards and Gantt charts. It functions as a strategic planning tool that links daily operational tasks to high-level business goals and long-term objectives, while also serving as a time tracking and billing system for managing work hours and client estimations. The platform differentiates itself through an integrated AI-powered project assistant that decomposes complex tasks, generates status reports, and provides project insights. It further distinguishes its offering with a

Docmost is an open-source knowledge management system designed as a collaborative documentation platform for teams. It functions as an enterprise wiki that centralizes organizational information into structured, searchable workspaces, enabling users to create, organize, and share content through a hierarchical system of spaces and pages. The platform distinguishes itself by integrating artificial intelligence directly into the documentation lifecycle. It utilizes vector-based semantic search to allow for natural language queries across stored content and provides AI-assisted tools for draftin

This project provides a containerized DevOps platform by packaging a complete GitLab installation into Docker images. It enables the deployment of a self-hosted environment that integrates Git version control, project management, and continuous integration and delivery pipelines on private infrastructure. The implementation supports deployment via Docker Compose or orchestration through Docker Swarm, allowing for scalable stacks with integrated container registries. It utilizes environment variables for configuration and supports the offloading of artifacts and backups to remote object storag

Octelium is a zero-trust network access platform and identity-aware proxy designed to secure private HTTP, SSH, and SQL resources. It functions as a secure gateway that validates human and workload identities using OIDC, SAML, and FIDO2 passkeys before granting access to internal applications and SaaS APIs. The system is distinguished by its secretless access broker, which injects credentials—such as API keys, passwords, and AWS Sigv4 signatures—at the gateway level so users can access databases and cloud resources without managing secrets. It further specializes in AI gateway administration,

Higress is an AI API gateway and cloud-native traffic manager that functions as a Kubernetes ingress controller. It provides a centralized system for routing, securing, and optimizing traffic directed toward large language models, AI agents, and microservice architectures. The project distinguishes itself through deep AI orchestration, including the ability to host and manage Model Context Protocol servers that transform REST APIs into tools for AI agents. It features specialized AI infrastructure for model request proxying, protocol translation across multiple providers, and semantic-based c

Ghostwriter is a distraction-free markdown text editor and document processor. It provides a focused writing environment for composing documents using markdown syntax, separating the drafting process from final formatting. The application features a minimalist interface designed to minimize visual clutter, including the ability to disable deletion keys to enforce a forward-only drafting flow. It includes a live statistics dashboard for tracking word counts and session metrics, as well as visual highlighting that fades non-active text to focus attention on the current line, sentence, or paragr

This project is a self-hosted documentation platform designed for collaborative knowledge base management. It provides a block-based editor that structures content as a tree of independent nodes, allowing for flexible layout composition and the creation of complex, nested document hierarchies. The platform distinguishes itself through an offline-first architecture that utilizes conflict-free replicated data types to maintain synchronization across multiple clients. This ensures that teams can continue editing content during network disconnections, with all changes merging automatically once c

ScribeJava is a Java library used to implement OAuth authentication and authorization flows. It functions as an OAuth client implementation and a third-party API integrator, allowing Java applications and Android environments to securely exchange data with external identity providers. The library provides a framework for managing secure data exchanges through pre-configured provider settings. It enables applications to link to external login services for user authentication and interaction with third-party APIs without requiring the local storage of passwords. The project covers identity pro

Next-auth is an authentication and identity management library for web frameworks. It provides a unified system for handling user sign-in and session state across server and client environments, functioning as a session management framework and an OIDC authentication library. The project distinguishes itself through a provider-based identity abstraction that supports multiple authentication methods, including OAuth, email magic links, traditional credentials, and passwordless passkeys. It allows for the registration of custom OAuth or OIDC compliant providers and offers tools to define branda

Bear Blog is a lightweight, self-hosted blogging platform that compiles Markdown files into static HTML pages at build time without requiring a database. It focuses on minimal publishing workflows with full visual customization through built-in themes and custom CSS, including dark mode support. The platform distinguishes itself with bot-neutral readership tracking that only counts page views when a visitor scrolls or hovers, ensuring metrics exclude automated traffic. It supports multilingual site deployments as either separate independent instances or tag-based language versions, and offers

Quartz is a markdown static site generator and digital garden framework designed to transform collections of markdown notes into public websites. It functions as a wiki engine that converts structured documents into a functional site through a configurable build pipeline. The system specializes in personal knowledge management by visualizing the relationships between notes via backlinks and a bidirectional connection graph. It implements a single-page application model to provide dynamic page transitions and browser URL updates without full page refreshes. The toolset covers content relation

Typecho is a self-hosted PHP blogging platform and content management system designed for publishing blogs and journals. It functions as a multi-database CMS, providing a writing interface that converts lightweight markup language into formatted HTML for streamlined article authoring. The platform is built as a plugin-based system, allowing users to extend functionality and modify site behavior through third-party extensions. Site appearance and layout are managed through a customizable theme system. The system includes capabilities for managing content via custom data fields and supports da

Vditor is a browser-based Markdown editor and rendering engine that supports multiple editing interfaces, including a visual rich-text experience, instant rendering, and a traditional side-by-side split-view preview. It serves as an authoring tool for technical documentation and a component for web-based editor integration. The project is distinguished by its support for complex technical content, utilizing specialized rendering for mathematical formulas, flowcharts, sequence diagrams, and mind maps. It also functions as a collaborative document review tool, enabling users to attach anchored

Hanko is an open-source identity provider and customer identity and access management system. It serves as a passkey authentication service and an OAuth and SAML SSO gateway, allowing applications to authenticate users and issue tokens via standard identity protocols. The project distinguishes itself through a strong focus on passwordless access using WebAuthn-based passkeys and email-based passcodes. It provides framework-agnostic authentication interfaces as customizable web components that can be embedded directly into web applications to handle login, registration, and profile management.

Tale is a self-hosted blogging platform and content management system built with Java. It functions as a Markdown publishing system that renders lightweight markup into structured web pages and stores posts and metadata within an embedded database for portability and easy backups. The system is distinguished by its highly customizable visual layer, supporting custom skin design, external theme installation, and the development of templates using structured directories of assets. It also features a plugin system that allows for the loading of external logic packages and custom components durin

Dendron is a markdown knowledge management system designed for organizing linked files into a hierarchical personal knowledge base. It functions as a git-backed note manager that stores data as plaintext markdown files to ensure data persistence and ownership. The system distinguishes itself through schema-based organization, which applies structural templates and autocomplete hints to maintain consistency across large sets of documents. It also provides bi-directional linking and an interactive graph view to visualize relationships between notes, alongside a static site generator that export

Mistune is a pure Python implementation of a Markdown to HTML parser. It functions as a library that converts Markdown formatted text into HTML markup for rendering in web browsers. The project is designed as an extensible Markdown renderer, utilizing a modular system that allows for the customization of how Markdown elements are transformed into HTML via a pluggable renderer. Its capabilities cover a range of conversion tasks, including static site generation, dynamic content rendering, and the creation of custom documentation workflows.

A responsive Material Design theme for static blogs built with the Hexo framework. It functions as a comprehensive layout system that transforms markdown files into styled HTML pages, providing a specialized environment for technical documentation and personal blogging. The theme is characterized by a data-driven approach to content visualization, using radar charts for categories and word clouds for tags to represent post metadata. It further distinguishes its organization by utilizing a chronological timeline architecture for blog archives. The project covers a wide range of technical publ

Vimwiki is a personal wiki plugin and text editor extension for Vim that organizes interconnected text files. It functions as a Markdown knowledge base and a Zettelkasten note system, allowing for the creation of a networked system of notes and documentation. The project provides tools for wiki administration, enabling users to create, rename, and navigate between linked documents via internal linking. It supports various markup formats, including Markdown and MediaWiki, and can transform this content into HTML for web publishing. The system covers personal knowledge management through globa

VNote is a native C++ desktop application designed as a Markdown note-taking platform and digital knowledge base. It provides a high-performance environment for organizing, editing, and structuring information using a Markdown-based content model. The application distinguishes itself with a Vi-style input mode for text navigation and a system of priority-based event hooks for extensibility. It further supports customization through CSS-based theme styling and global hotkey mapping. Broad capabilities include personal knowledge management via full-text and tag search, digital mind mapping, an

Devise is a comprehensive identity management system and authentication framework for Ruby on Rails applications. It provides a complete set of tools for managing user registration, secure sign-in, and session handling using a modular strategy pattern. The framework distinguishes itself by offering a suite of security hardening features, including brute force protection through account locking and secure password recovery workflows. It also functions as an integrator for external identity providers and third-party authentication via standardized protocols. Broad capabilities cover the full u

Memos is a self-hosted, container-native knowledge management platform designed for capturing and organizing personal notes. It functions as a private workspace where users can create content using markdown, tags, and media embeds to streamline daily productivity. The system is built to be deployed as a portable service, allowing individuals to maintain full control over their data and hosting environment. Beyond its core note-taking capabilities, the platform operates as a headless content service that exposes a structured RESTful API. This interface allows for programmatic interaction, enab

Grist is a relational spreadsheet platform that combines the flexibility of a spreadsheet with the power of a relational database. At its core, it manages structured data across multiple linked tables, using a relational database engine to organize information while providing a familiar grid interface. The platform supports Python-based formulas for complex calculations and data transformations, with automatic recalculation when referenced cells change. The system is designed for self-hosted deployment, storing data in either portable SQLite files or enterprise-grade PostgreSQL databases. It