Open Source Linux Documentation Software
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Documentation Software for Linux
View 7 business solutionsBrowse free open source Documentation software and projects for Linux below. Use the toggles on the left to filter open source Documentation software by OS, license, language, programming language, and project status.
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Build Agents and Models on One PlatformGemini Enterprise Agent Platform is Google Cloud's comprehensive platform for developers to build, scale, govern, and optimize agents and models. Choose from Google's most advanced models and third-party models like Anthropic's Claude Model Family.
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Doxygen is a JavaDoc like documentation system for C++, C, Java and IDL.
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PlantUML allows to quickly create some UML diagram using a simple textual description language.
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Joplin
Open source note taking and to-do app with synchronization
Joplin is a free and open source note-taking and to-do application that can handle a large number of notes in Markdown format, organize them into notebooks and synchronize them with various cloud services. All notes can also be copied, tagged, searched and modified directly from the app or through your own text editor. Notes that are exported from Evernote can be imported into Joplin, be it formatted content, resources, complete metadata or plain Markdown files. When notes are synchronized with cloud services, notebooks, tags and other metadata can easily be moved, inspected or backed up as plain text files. Supported cloud services include Nextcloud, OneDrive, Dropbox and WebDAV. Joplin is available for Windows, Linux, macOS, iOS and Android, with three types: desktop, mobile and terminal. All of them have similar user interfaces and can be synchronized with each other. -
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Mermaid
Diagram and flowchart generation from text similar to markdown
Mermaid is a JavaScript-based diagram and flowchart generating tool that uses markdown-inspired text for fast and easy generation of diagrams and charts. Forget about using heavy tools to explain your code. Mermaid greatly simplifies documentation with its simple markdown-like script language, and offers a great range of diagram and chart options. The latest version of Mermaid comes with a number of bug fixes and enhancements, as well as a new diagram type, entity relationship diagrams. Its range of available diagrams include flowcharts, sequence diagrams, gantt diagrams and more, with new ones continuously being developed. -
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TestLink
Test & requirements management
TestLink is a web based Test Management tool. The application provides Test specification, Test plans and execution, Reporting, Requirements specification and collaborate with well-known bug trackers. Repository: https://github.com/TestLinkOpenSourceTRMS -
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Utilities for general- and special-purpose documentation. Includes reStructuredText, the easy to read, easy to use, what-you-see-is-what-you-get plaintext markup language.
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Swagger UI
HTML, JavaScript, and CSS assets that generate Swagger documentation
Swagger UI is a collection of HTML, JavaScript, and CSS assets that dynamically generate beautiful documentation from a Swagger-compliant API. Simplify API development for users, teams, and enterprises with the Swagger open source and professional toolset. Find out how Swagger can help you design and document your APIs at scale. The power of Swagger tools starts with the OpenAPI Specification — the industry standard for RESTful API design. Individual tools to create, update and share OpenAPI definitions with consumers. SwaggerHub is the platform solution to support OpenAPI workflows at scale. Swagger open source and pro tools have helped millions of API developers, teams, and organizations deliver great APIs. Swagger offers the most powerful and easiest to use tools to take full advantage of the OpenAPI Specification. -
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Swagger Editor
An editor designed for Swagger
Swagger Editor lets you edit Swagger API specifications in YAML inside your browser and to preview documentations in real time. Valid Swagger JSON descriptions can then be generated and used with the full Swagger tooling (code generation, documentation, etc). swagger-editor is a traditional npm module intended for use in single-page applications that are capable of resolving dependencies (via Webpack, Browserify, etc). swagger-editor-dist is a dependency-free module that includes everything you need to serve Swagger Editor in a server-side project, or a web project that can't resolve npm module dependencies. If you're building a single-page application, using swagger-editor is strongly recommended, since swagger-editor-dist is significantly larger. -
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Zeal
Offline documentation browser inspired by Dash
Zeal is a simple offline documentation browser inspired by Dash. Get binary builds for Windows and Linux from the download page. After installing Zeal go to Tools ⟶ Docsets to browse and download docsets. You can limit search results to specific (or a set of specific) docsets. The docset filter and the search query are delimited by a colon character (:). If you prefer, you can start Zeal with a query from the command line. You can also search multiple docsets separating them with a comma. You can limit the search scope by using ':' to indicate the desired docsets. -
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NelmioApiDocBundle
Generates documentation for your REST API from annotations
The NelmioApiDocBundle bundle allows you to generate documentation in the OpenAPI (Swagger) format and provides a sandbox to interactively experiment with the API. This bundle supports Symfony route requirements, PHP annotations, Swagger-Php annotations, FOSRestBundle annotations, and apps using API-Platform. For models, it supports the Symfony serializer, the JMS serializer and the willdurand/Hateoas library. It does also support Symfony form types. It generates OpenAPI documentation from your Symfony app thanks to Describers. One extracts data from SwaggerPHP annotations, one from your routes, etc. You can configure global information in the bundle configuration documentation.info section. Open a command console, enter your project directory and execute the provided command to download the latest version of this bundle. -
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BookStack
Simple & Free Wiki Software
BookStack is a free and open source platform for storing and organising information and documentation. A self-hosted and opinionated wiki system, BookStack is simple and easy to use, giving even new users with just basic word-processing skills a pleasant out of the box experience. BookStack offers a relaxed, open and positive approach. While the platform can provide advanced power features to those who want them, it is primarily designed not to be extensible outside of its core purpose. That being said, BookStack already comes with plenty of powerful features, such as search and linking, cross-book sorting, image management and more. It is also multi-lingual and offers options for authentication integration. -
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TagSpaces
TagSpaces is an offline, open source, document manager with tagging
TagSpaces is a free, no vendor lock-in, open source application for organizing, annotating and managing local files with the help of tags. It features advanced note taking functionalities and some capabilities of to-do apps. The application is available for Windows, Linux, Mac OS and Android. We provide a web clipper extension for Firefox, Edge and Chrome for easy collecting of online content in the form of local files. File and folder management - TagSpaces provides a convenient user interface for browsing, viewing and man files and folders. The application supports two ways for tagging files. The default one embeds the tags directly in the name of the file, the other one uses a so called sidecar files for persisting the tags. The search functionality supports fuzzy functionality and can filter your locations for files and folders containing one or more tags. -
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Cucumber.js
Cucumber for JavaScript
Cucumber is a tool for running automated tests written in plain language. Because they're written in plain language, they can be read by anyone on your team. Because they can be read by anyone, you can use them to help improve communication, collaboration and trust on your team. Cucumber.js is the JavaScript implementation of Cucumber and runs on the maintained Node.js versions. It’s simple. Whether open source or commercial, our collaboration tools will boost your engineering team's performance by employing Behavior-Driven Development (BDD). And with our world-class training, take it to places it’s never been. Validate executable specifications against your code on any modern development stack. 40+ million open source downloads, the #1 tool for BDD. CucumberStudio is the leading collaboration platform for BDD - an easy-to-use tool to define ideas, test code, and learn in production from real-time insight. -
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Doks
Everything you need to build a stellar documentation website
Doks is a lightweight documentation generator built on Hugo, a fast static site generator. It is designed to help developers create well-structured, user-friendly documentation sites with modern UI components and performance optimizations. -
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Just the Docs
A modern, high customizable, responsive Jekyll theme for documention
Just the Docs gives your documentation a jumpstart with a responsive Jekyll theme that is easily customizable and hosted on GitHub Pages. Just the Docs is built for Jekyll, a static site generator. View the Jekyll quick start guide for more information. Just the Docs requires no special plugins and can run on GitHub Pages’ standard Jekyll compiler. The Jekyll SEO Tag plugin is included by default (no need to run any special installation) to inject SEO and open graph metadata on docs pages. Your theme is set up just like a normal Jekyll site! To test your theme, run bundle exec jekyll serve. Add pages, documents, data, etc. like normal to test your theme's contents. As you make modifications to your theme and to your content, your site will regenerate and you should see the changes in the browser after a refresh, just like normal. -
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OpenAPI Generator
OpenAPI Generator allows generation of API client libraries
With 50+ client generators, you can easily generate code to interact with any server which exposes an OpenAPI document. Maintainers of APIs may also automatically generate and distribute clients as part of official SDKs. Each client supports different options and features, but all templates can be replaced with your own Mustache-based templates. Getting started with server development can be tough, especially if you're evaluating technologies. We can reduce the burden when you bring your own OpenAPI document. Some generators support Inversion of Control, allowing you to iterate on design via your OpenAPI document without worrying about blowing away your entire domain layer when you regenerate code. Ever wanted to iteratively design a MySQL database, but writing table declarations was too tedious? OpenAPI documents allow you to convert the metadata about your API into some other format. -
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DocFX
Static site generator for .NET API documentation
DocFX can produce documentation from source code (including C#, F#, Visual Basic, REST, JavaScript, Java, Python and TypeScript) as well as raw Markdown files. DocFX can run on Linux, macOS, and Windows. The generated static website can be deployed to any host such as GitHub Pages or Azure Websites with no additional configuration. DocFX provides a flexible way to customize templates and themes. DocFX makes it extremely easy to generate your developer hub with a landing page, API reference, and conceptual documentation, from a variety of sources. DocFX builds a static HTML website from your source code and Markdown files, which can be easily hosted on any webserver (for example, github.io). Also, DocFX provides you the flexibility to customize the layout and style of your website through templates. If you are interested in creating your own website with your own styles, you can follow how to create a custom template to create custom templates. -
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DocSearch
The easiest way to add search to your documentation
Initially created to fulfill our own developers' needs, DocSearch quickly evolved into a successful community project. Over the years, we've explored new ways to address the complexities of search for the open-source community. DocSearch understands how the user input fits into the context of your project and instantly presents the most relevant content with fewer interactions than any other method. With a design very close to the native experience on mobile, we leverage users acquaintance with the interaction patterns of each OS. We scrape your documentation or technical blog, configure the Algolia application and send you the snippet you'll have to integrate. It's that simple. You don't need to configure any settings or even have an Algolia account. We take care of this for you! We'll send you a small snippet to integrate DocSearch to your website and an invite to your fully configured Algolia application. -
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Docz
It has never been so easy to document your things
Docz is a documentation framework for building interactive documentation sites from MDX files. It lets developers write documentation that combines Markdown content with live React components, examples, props tables, and playground-style demos. The project is designed to reduce the time spent building and maintaining custom documentation websites. It creates live-reloading development sites and production-ready static documentation output. Docz is built around Gatsby, which enables SEO-friendly documentation and customization through Gatsby theme shadowing. The repository was archived by its owner on November 21, 2025, so it is best treated as a mature legacy project for existing documentation sites or as a reference for MDX-based documentation workflows. -
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ExpressJS.com
The Express.js Website
This repository contains the source for the Express web site and documentation, the canonical reference for developers using the Express framework. It organizes material into API reference, getting-started guides, best practices, and topic-focused explanations such as routing, middleware, error handling, templating, and performance. Versioned docs help readers match API behavior to the framework version they’re running, reducing confusion during upgrades. The site showcases common patterns through concise examples, making it easy to translate concepts into working code. In addition to core Express usage, the documentation surfaces ecosystem guidance on things like security headers, structured logging, and integration with view engines or ORMs. Because it is open to community contributions, the documentation evolves alongside Express itself, reflecting real-world questions and solutions. -
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Github Readme Streak Stats
Stay motivated and show off your contribution streak
The github-readme-streak-stats is a GitHub project that displays a personalized contribution streak on a GitHub profile. It shows the number of consecutive days the user has contributed to their repositories. This tool helps visualize coding consistency and encourages continued contributions by tracking streaks, motivating developers to keep their streaks alive. -
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Wiki.js
A modern and powerful wiki app built on Node.js
Works on virtually any platform and is compatible with either PostgreSQL, MySQL, MariaDB, MS SQL Server or SQLite! Manage all aspects of your wiki using the extensive and intuitive admin area. Running on the blazing-fast Node.js engine, Wiki.js is built with performance in mind. Fully customize the appearance of your wiki, including a light and dark mode. You'll be ready to go within minutes! Step-by-step install guides are available for all platforms. Make your wiki public, completely private, or a mix of both. Whether it's on a tiny Raspberry Pi or on a high-performance VM in the cloud, Wiki.js intelligently makes use of the available resources. Built-in authentication with self-registration and password recovery capabilities. Use 3rd-party authentication services like Google, Facebook, Microsoft, GitHub, Discord, Slack and more. Add an extra layer of security using two-factor authentication for supported authentication modules. -
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cloc (Count Lines Of Code) counts, and computes differences of, comment lines, blank lines, and physical lines of source code in many programming languages. cloc is now being developed at https://github.com/AlDanial/cloc
