Open-source documentation software
1012 open-source libraries, tools and applications tagged documentation, ranked by how closely documentation is their primary purpose, then by adoption and maintenance health. Each entry links to a page with sources, use cases and when to choose or avoid it.
1012 products, primary matches first, then adoption-weighted; health v2 shown.
| Product | Health v2 | Stars | Maturity |
|---|---|---|---|
| feenkcom/gtoolkit Glamorous Toolkit is the Moldable Development environment built on Pharo/Smalltalk, providing an integrated IDE with thousands of contextua… | 96 | 1582 | active |
| scanapi/scanapi ScanAPI is a Python CLI tool that runs automated integration tests against REST APIs using declarative YAML/JSON specifications. It hits de… | 94 | 1582 | active |
| vuejs/vetur Vetur is a VS Code extension providing Vue.js tooling, including syntax highlighting, IntelliSense, formatting, linting, debugging support,… | 23 | 5743 | maintenance |
| Legend Legend is an end-to-end data platform from FINOS (originated at Goldman Sachs) covering the full data lifecycle: modeling, curation, queryi… | 77 | 1553 | active |
| redimp/otterwiki An Otter Wiki is a self-hosted, minimalistic wiki application for collaborative content management, written in Python with Flask. Content i… | 96 | 1545 | active |
| YAML Language Server A language server implementing the Language Server Protocol (LSP) for YAML files, providing validation, schema-driven completion, hover, fo… | 75 | 1525 | active |
| edmund-io/edmunds-claude-code A Claude Code plugin providing 14 slash commands and 11 specialized AI agents for web development workflows. It scaffolds APIs, React compo… | 35 | 1509 | active |
| softwaremill/tapir Tapir is a Scala library for describing HTTP APIs declaratively with type-safe endpoint definitions. Endpoints can be exposed as servers, c… | 96 | 1475 | active |
| citerus/dddsample-core The official Domain-Driven Design (DDD) sample application, a joint effort by Eric Evans' Domain Language and Citerus, originally hosted on… | 39 | 5291 | maintenance |
| nduckmink/arkon Arkon is a self-hosted enterprise knowledge hub that compiles organizational documents into a structured, traceable wiki and serves it to L… | 65 | 1461 | active |
| elabftw/elabftw eLabFTW is a free, open source electronic lab notebook (ELN) and laboratory inventory management system for research teams, accessed via th… | 95 | 1442 | stable |
| 3xxx/engineercms EngineerCMS is a self-hosted web-based knowledge management system for engineers, built in Go on the Beego framework. It manages personal a… | 80 | 1421 | active |
| Houseofmvps/codesight codesight is a zero-dependency Node.js CLI that scans a codebase and generates a compact AI context map (routes, schemas, components, depen… | 54 | 1417 | active |
| ONEARMY/community-platform An open-source community platform built by One Army to help global communities connect, collaborate, and share knowledge around social and … | 93 | 1403 | active |
| m0n0x41d/haft Haft is a local governance and project-memory layer for AI coding agents such as Claude Code, Cursor, Codex, and Gemini CLI. Built on the F… | 80 | 1398 | active |
| aklofas/kicad-happy A collection of AI coding agent skills that turn Claude Code, OpenAI Codex, and similar agents into KiCad electronics design assistants. It… | 82 | 1394 | active |
| eslint/config-inspector A visual web-based tool for inspecting and understanding ESLint flat configs. It runs via npx against a project's eslint.config.js, serving… | 91 | 1391 | active |
| Luracast/Restler Restler is a zero-boilerplate REST API framework for PHP 8+ that uses reflection to auto-generate routes, validation, and OpenAPI documenta… | 92 | 1386 | active |
| oasdiff oasdiff is a Go CLI tool and GitHub Action that diffs OpenAPI/Swagger specifications and detects breaking API changes, generating changelog… | 92 | 1375 | active |
| ossf/best-practices-badge The OpenSSF Best Practices Badge is a web application (BadgeApp) that lets Free/Libre and Open Source Software projects self-certify that t… | 96 | 1370 | active |
| TypeScript AST Viewer A web application for exploring the TypeScript compiler's abstract syntax tree (AST). It lets users paste TypeScript code and interactively… | 76 | 1366 | active |
| mhgolkar/Arrow Arrow is a free, open-source visual tool for game narrative design, text-adventure development, and interactive nonlinear storytelling, bui… | 40 | 1359 | active |
| unslop-xyz/noodles Noodles is a Python CLI tool that builds function call graphs from codebases using tree-sitter AST parsing and renders them as interactive … | 44 | 1352 | active |
| stephenmcd/mezzanine Mezzanine is an open-source content management platform built on the Django framework, offering an integrated, extensible alternative to Wo… | 61 | 4816 | maintenance |
| bolo-blog/bolo-solo Bolo is a Java-based self-hosted blogging system for programmers, deeply customized from the Solo blog platform. It ships with polished the… | 55 | 1344 | active |
| yzane/vscode-markdown-pdf A Visual Studio Code extension that converts Markdown files to PDF, HTML, PNG, or JPEG. It supports PlantUML and Mermaid diagrams, KaTeX ma… | 90 | 1338 | active |
| caksoylar/keymap-drawer A Python module and CLI tool that parses QMK and ZMK keyboard keymap files and renders them as SVG diagrams, with support for layers, hold-… | 80 | 1338 | active |
| bevibing/tutor-skills A pair of Claude Code skills that convert documents (PDF, MD, HTML, EPUB) or source codebases into structured Obsidian study vaults with in… | 43 | 1333 | active |
| AndroidCSOfficial/android-code-studio Android Code Studio is a full IDE that runs on Android devices, letting developers build real Gradle-based Android apps entirely from a pho… | 68 | 1323 | active |
| muellan/clipp clipp is a single-header, MIT-licensed C++11/14/17 library for expressive command line argument parsing. It supports options, positional va… | 23 | 1323 | stable |
| brucemiller/LaTeXML LaTeXML is a Perl-based TeX and LaTeX to XML/HTML/MathML/ePub converter that emulates TeX to transform LaTeX sources into structured XML, t… | 66 | 1319 | active |
| XWiki XWiki Platform is a generic open-source enterprise wiki platform written in Java that offers runtime services for collaborative application… | 94 | 1314 | stable |
| huangkiki/dailypaper-skills A set of Claude Code skills that automates a daily research paper pipeline: fetching new papers from HuggingFace Daily, Trending, and arXiv… | 60 | 1301 | active |
| TanStack/cli The official TanStack CLI for scaffolding and managing TanStack Start and TanStack Router applications, with composable add-ons for auth, d… | 79 | 1299 | active |
| n64decomp/mk64 A complete C decompilation of Mario Kart 64 that rebuilds byte-matching ROMs for USA and European revisions from extracted game assets. It … | 72 | 1298 | active |
| huhu/rust-search-extension A browser extension for Chrome, Firefox, and Edge that provides instant search of Rust documentation, crates, builtin attributes, books, an… | 86 | 1271 | active |
| microsoft/skills-for-fabric A collection of reusable AI assistant skills and MCP systems from Microsoft for working with Microsoft Fabric workloads, APIs, and Power BI… | 83 | 1270 | active |
| volarjs/volar.js Volar.js is a framework for building language tooling for embedded languages, powering language servers like Vue, Astro, and MDX. It provid… | 74 | 1260 | active |
| vuedx/languagetools VueDX is a collection of tools for improving the Vue.js developer experience, including a VS Code extension providing language features, sy… | 23 | 1253 | active |
| zsyggg/paper-craft-skills A collection of Claude Code / Codex agent skills that turn academic papers into method figures, visual slide decks, and in-depth HTML artic… | 50 | 1250 | active |
| WebScrapBook WebScrapBook is a browser extension that captures web pages faithfully into various archive formats (including MAFF and HTZ) for local or b… | 75 | 1243 | active |
| owen2345/camaleon-cms Camaleon CMS is a dynamic and advanced content management system built on Ruby on Rails, designed as a flexible alternative to WordPress fo… | 92 | 1237 | active |
| sakaiproject/sakai Sakai is an open-source Learning Management System (LMS) / Collaboration and Learning Environment built in Java and deployed on Apache Tomc… | 76 | 1234 | active |
| Hopetree/izone izone is a personal blog system built with Django, MySQL, Redis, and Celery, also usable as a documentation site. It ships with full-text s… | 66 | 1230 | active |
| OpenSID/OpenSID OpenSID is an open-source Village Information System (Sistem Informasi Desa) web application for Indonesian village governments. It helps v… | 92 | 1228 | active |
| Assemble Assemble is a Node.js command line tool and developer framework for static site generation, rapid prototyping, scaffolding, and building do… | 32 | 4256 | maintenance |
| cocogitto/cocogitto Cocogitto is a Rust CLI toolbox for the Conventional Commits and SemVer specifications. It helps create compliant commits, automatically bu… | 66 | 1211 | active |
| Combodo/iTop iTop (IT Operations Portal) is an open-source, web-based IT service management (ITSM) platform built in PHP, featuring a fully customizable… | 93 | 1198 | stable |
| microsoft/opensource.microsoft.com The source code for opensource.microsoft.com, a mostly-static website showcasing Microsoft's open source projects, program information, and… | 77 | 1195 | stable |
| DMOJ Online Judge DMOJ is a modern open-source online judge and contest platform for hosting programming competitions and practice problems. It supports sand… | 67 | 1193 | active |
| soulteary/forever-coolshell A self-hostable electronic archive of the CoolShell blog (by the late Chen Hao / 左耳朵耗子), preserving his public technical writings. It ships… | 21 | 1191 | stable |
| Shpigford/clearly Clearly is a free, open-source native Markdown editor for macOS, iOS, and iPadOS built in Swift, with syntax highlighting, GFM preview, KaT… | 76 | 1171 | active |
| Strands Agents Agent SOPs are markdown-based standard operating procedures that guide AI agents through complex, multi-step workflows using natural langua… | 79 | 1170 | active |
| scalameta/scalameta Scalameta is a Scala library for reading, analyzing, transforming, and generating Scala programs via lossless syntax trees and quasiquotes.… | 98 | 1158 | active |
| davis7dotsh/better-context btca (better-context) is a codebase research tool that lets developers and AI coding agents ask questions about libraries and frameworks by… | 47 | 1158 | active |
| funkygao/cp-ddd-framework DDDplus (formerly cp-ddd-framework) is a lightweight Java framework that enhances Domain-Driven Design with forward and reverse business mo… | 45 | 1155 | active |
| OpenLAIR/dr-claw Dr. Claw is an open-source, model-agnostic AI research assistant that provides a desktop and mobile UI for Claude Code, Cursor CLI, Codex, … | 78 | 1139 | active |
| openclaw/agent-skills A shared catalog of reusable skills (workflow definitions and helper scripts) for coding agents like Codex and Claude Code, installable via… | 82 | 1106 | active |
| caoqianming/django-vue-admin A full-stack admin platform built on RBAC permission control, with a Django + Django REST Framework backend and a Vue 2 + Element UI fronte… | 63 | 1104 | active |
| ietf-tools/datatracker The IETF Datatracker is a Django-based web application serving as the day-to-day front-end to the IETF database, tracking documents, workin… | 95 | 1097 | active |
| Kotlin/kotlin-agent-skills A collection of AI agent skills for Kotlin projects, packaged as self-contained folders following the Agent Skills standard (agentskills.io… | 59 | 1089 | active |
| plentico/plenti Plenti is an open-source static site generator (build-time render engine) with a Go-based CLI backend and Svelte-based frontend. It ships w… | 78 | 1077 | active |
| swiftlang/vscode-swift The official Visual Studio Code extension providing Swift language support, powered by SourceKit LSP for code intelligence and LLDB DAP for… | 95 | 1069 | active |
| welliamcao/OpsManage OpsManage is a self-hosted automated operations platform built with Django and Celery that combines CI/CD code and application deployment, … | 23 | 3596 | maintenance |
| argdown/argdown Argdown is a simple markup syntax for analyzing complex argumentation, letting users write pros/cons and premise-conclusion structures that… | 75 | 1045 | active |
| Zenodo Zenodo is a CERN-built open-source research data repository platform where researchers can share and preserve research outputs of any size … | 61 | 1045 | active |
| bitjson/typescript-starter An interactive CLI project generator that scaffolds new TypeScript libraries or Node.js projects with preconfigured tooling. It sets up tes… | 32 | 3541 | maintenance |
| composecraft/composecraft Compose Craft is an open-source web application providing a visual GUI for creating, editing, and sharing Docker Compose files via drag-and… | 52 | 1039 | active |
| am-will/codex-skills A collection of Codex/agent skills written in Shell covering planning, documentation access, prompting, frontend design guidance, Codex too… | 54 | 1033 | active |
| danielcgilibert/blog-template OpenBlog is an open-source blog template built with Astro, TypeScript, and Tailwind CSS, pre-configured with Tina CMS for in-repo content e… | 20 | 1018 | active |
| jceb/vim-orgmode A Vim file type plugin that brings Emacs Org-Mode's text outlining and task management to Vim, including folding, heading navigation, TODO … | 61 | 3185 | maintenance |
| ondras/wwwsqldesigner WWW SQL Designer is a browser-based tool for drawing database schemas (E-R diagrams) with support for keys, foreign keys, indexes, and comm… | 62 | 2928 | maintenance |
| mrwill84/DOClever DOClever is a free, open-source API management platform for small and medium teams, offering interface editing, debugging, mock serving, au… | 46 | 2902 | maintenance |
| dbt dbt Core is an open-source command-line tool that lets data analysts and engineers transform data in warehouses using SQL select statements… | 95 | 14039 | experimental |
| MiniMax-AI/skills A collection of structured development skills (guidance packs) that plug into AI coding agents to provide production-quality workflows for … | 46 | 13719 | experimental |
| jgm/gitit Gitit is a wiki program written in Haskell that uses Happstack as its web server and pandoc for markup processing. Pages and uploaded files… | 77 | 2276 | maintenance |
| Plume-org/Plume Plume is a federated blogging engine built on ActivityPub, written in Rust with the Rocket framework and Diesel ORM. It lets users self-hos… | 26 | 2223 | maintenance |
| arielsalminen/vue-design-system Vue Design System is an open source starter tool for building UI design systems with Vue.js, built on Vue Styleguidist, Webpack, and Theo. … | 23 | 2196 | maintenance |
| cyberagiinc/DevDocs DevDocs is a free, private, UI-based MCP server that crawls and extracts technical documentation (using Crawl4AI and Playwright) and expose… | 47 | 2108 | maintenance |
| adamzap/landslide Landslide is a Python CLI tool that generates HTML5 slideshow presentations from Markdown, reStructuredText, or Textile source files, build… | 32 | 2093 | maintenance |
| jamiemcg/Remarkable Remarkable is a fully featured open-source Markdown editor for Linux with live preview, syntax highlighting, and GitHub Flavored Markdown s… | 23 | 2042 | maintenance |
| jonschlinkert/markdown-toc A Node.js library and CLI that generates a table of contents for markdown files like READMEs, using Remarkable to parse headings. It can in… | 32 | 1755 | maintenance |
| c8r/x0 x0 is a zero-configuration CLI tool that renders a directory of React components into a development server with file-system-based routing, … | 23 | 1703 | maintenance |
| vuepress-theme-reco vuepress-theme-reco 1.x is a minimalist blog and documentation theme for VuePress, adding categories, tag walls, pagination, comments, and … | 32 | 1607 | maintenance |
| fullstackproltd/AspNetCoreSpa A fullstack single-page application template combining ASP.NET Core 7.0 with Angular 15, featuring IdentityServer4 authentication, Entity F… | 23 | 1536 | maintenance |
| fossasia/publiccode.asia-legacy The source for the publiccode.asia campaign website 'Public Money, Public Code', built with the Hugo static site generator. It hosts multil… | 98 | 1471 | maintenance |
| nea/MarkdownViewerPlusPlus A Notepad++ plugin that renders Markdown files on-the-fly in a dockable preview panel. It supports synchronized scrolling, custom CSS, and … | 10 | 1383 | maintenance |
| donejs/donejs DoneJS is an all-in-one JavaScript framework that bundles StealJS, CanJS, jQuery, testing tools, documentation generators, and server-side … | 23 | 1339 | maintenance |
| mitchelloharawild/vitae An R package providing LaTeX and HTML templates plus helper functions for creating and maintaining résumés and CVs with R Markdown. It supp… | 81 | 1271 | maintenance |
| tikzit/tikzit TikZiT is a simple GUI desktop application for rapidly creating graphs and string diagrams using PGF/TikZ. Its native file format is a subs… | 23 | 1248 | maintenance |
| diez/diez Diez is an open-source design token framework that lets teams define visual styles (colors, typography, shadows, etc.) in TypeScript and co… | 23 | 1238 | maintenance |
| JuliusBrussee/cavekit Cavekit is a frozen (August 2026) Claude Code plugin that implements compressed spec-driven development via a single SPEC.md file and a sma… | 68 | 1156 | maintenance |
| tankywoo/simiki Simiki is a simple, lightweight wiki framework written in Python that generates static HTML sites from Markdown source files. It includes a… | 32 | 1147 | maintenance |
| lock-upme/OPMS OPMS is a self-hosted web application combining project management (PMS) and office administration (OA) for small and medium flat-structure… | 32 | 1128 | maintenance |
| Data.gov The WordPress theme and issue tracker for Data.gov, the U.S. government's open data site, which pairs a WordPress front end with a CKAN dat… | 77 | 1126 | maintenance |
| Fabricator Fabricator is a Node.js tool for building website UI toolkits and generating style guides from component code. It uses Gulp, Handlebars, an… | 10 | 1090 | maintenance |
| johnpatrickmorgan/wtfautolayout The source code for WTF Auto Layout (wtfautolayout.com), a web service that parses Auto Layout constraint-conflict error logs from iOS and … | 23 | 1073 | maintenance |
| charmbracelet/fang Fang is a Go library that wraps Cobra CLI applications with batteries-included styling and features. It provides styled help and error outp… | 77 | 1953 | experimental |
| hashicorp-forge/hermes Hermes is an open-source document management system created by HashiCorp Labs to help scale the writing and document review process. It int… | 52 | 1908 | experimental |
| Klotzkette/claude-fuer-deutsches-recht An experimental collection of Claude skills, sub-agents, and workflows adapted for German legal practice, covering areas like employment, c… | 78 | 1741 | experimental |