Open Source Linux Documentation Software
Sort By:
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.
-
Demo Series - Small Business Backup By VeeamWatch this on-demand demo series and learn how to protect your Microsoft 365 data with clear, simple, actionable steps that are easy to implement for businesses of all sizes.
-
Cut Data Warehouse Costs by 54%BigQuery delivers 54% lower TCO with exabyte scale and flexible pricing. Free migration tools handle the SQL translation automatically.
-
1
Doxygen is a JavaDoc like documentation system for C++, C, Java and IDL.
-
2
PlantUML allows to quickly create some UML diagram using a simple textual description language.
-
3
-
4
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 -
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.
-
5
Leo is an outlining-oriented project manager and browser. With Leo you can organize programs, web sites, URL's, pictures or any other kind of data. Leo is fully scriptable in Python. Leo is 100% pure Python. It requires the Qt gui toolkit.
-
6
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. -
7
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.
-
8
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. -
9
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. -
Paessler: Easy to Use With Enterprise Power. Free TrialYou shouldn't have to choose between a monitoring tool that's easy to use and one that's powerful enough for a complex environment. PRTG's low-code interface lets any admin build dashboards, set alerts and monitor devices without scripting, while custom sensors and full API access are there when your team needs deeper control. One platform, no compromise. Download a free 30-day trial now.
-
10
terraform-docs
Generate documentation from Terraform modules in various formats
terraform-docs is a utility to generate documentation from Terraform modules in various output formats. The terraform-docs configuration file uses the yaml format in order to override any default behaviors. This is a convenient way to share the configuration amongst teammates, CI, or other toolings. Once you set it up and configured it, every time you or your teammates want to regenerate documentation (manually, through a pre-commit hook, or as part of a CI pipeline) all you need to do is run terraform-docs /module/path. One of the most popular format is markdown table, which is a very good fit for generating README of module. terraform-docs is available on Linux, macOS, Windows, and FreeBSD platforms. terraform-docs will locate any available configuration file without needing to explicitly pass the --config flag. -
11
Sphinx
Main repository for the Sphinx documentation builder
Sphinx is a tool that makes it easy to create intelligent and beautiful documentation, written by Georg Brandl and licensed under the BSD license. It was originally created for the Python documentation, and it has excellent facilities for the documentation of software projects in a range of languages. Of course, this site is also created from reStructuredText sources using Sphinx! HTML (including Windows HTML Help), LaTeX (for printable PDF versions), ePub, Texinfo, manual pages, plain text. Semantic markup and automatic links for functions, classes, citations, glossary terms and similar pieces of information. Easy definition of a document tree, with automatic links to siblings, parents and children. General index as well as a language-specific module index. Automatic highlighting using the Pygments highlighter. Automatic testing of code snippets, the inclusion of docstrings from Python modules (API docs), and more. -
12
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
-
13
NGINX Admin’s Handbook
How to improve NGINX performance, security, and other important things
nginx-admins-handbook is a practical, in-depth guide for configuring, securing, and operating NGINX across real-world deployments. It distills years of research, notes, and field experience into a single handbook that complements the official docs with concrete rules, explanations, and curated external references. The handbook spans fundamentals and advanced topics alike, from HTTP and SSL/TLS basics to reverse proxy patterns, performance tuning, debugging workflows, and hardening strategies. A centerpiece is its prioritized checklist of 79 rules, grouped by criticality, helping readers focus on what most impacts security, reliability, and speed. Instead of copy-paste snippets in isolation, it emphasizes understanding trade-offs, avoiding common pitfalls, and balancing security with usability. Designed for system administrators and web application engineers, it aims to be a living companion that encourages experimentation, measurement, and continuous improvement of NGINX configurations -
14
Furo
A clean customizable documentation theme for Sphinx
A clean customizable Sphinx documentation theme. Intentionally minimal, the most important thing is the content, not the scaffolding around it. Responsive, adapting perfectly to the available screen space, to work on all sorts of devices. Customizable, change the color palette, font families, logo and more! Easy to navigate, with carefully-designed sidebar navigation and inter-page links. Good-looking content, through clear typography and well-stylized elements. Good looking search, helps readers find what they want quickly. Biased for smaller docsets, intended for smaller documentation sets, where presenting the entire hierarchy in the sidebar is not overwhelming. Furo allows customizing the icons that are presented in the page footer. These icons can be used to link to relevant resources for your project and documentation. -
15
Markdoc
A powerful, flexible, Markdown-based authoring framework.
From personal blogs to massive documentation sites, Markdoc is a content authoring system that grows with you. Markdoc is a Markdown-based syntax and toolchain for creating custom documentation sites and experiences. We designed Markdoc to power Stripe's public docs, our largest and most complex content site. Markdoc is a Markdown-based syntax and toolchain for creating custom documentation sites. Stripe created Markdoc to power our public docs. Markdoc uses a fully declarative approach to composition and flow control. Maintain full control over your code and content. Markdoc is open-source and fully extensible. Markdoc delivers a powerful, flexible, developer experience (DX) with an equally capable authoring experience (AX). Use Markdoc to create interactive documentation experiences, static content sites, authoring tooling, and more. Markdoc core is a lightweight package containing everything you need to get started. -
16
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. -
17
"Roberge's Used Robot (RUR) : a Python Learning Environment" is a Python implementation of a "robot environment" as introduced by R. Pattis in 1981. **It is obsolete.** See https://github.com/aroberge/rur-ple
-
18
YARD
YARD is a Ruby Documentation tool. The Y stands for "Yay!"
With the new dynamic documentation server in YARD 0.6, you can now see exactly what YARD sees as you document your code. Simply type yard server, reload to have your project watch for changes in your codebase everytime you refresh the page. With this functionality, you almost have no excuse not to write documentation! You can write all kinds of extensions in YARD, including ones that can understand all of the dynamic magic your framework does in its own little Domain Specific Languages (DSLs). Most importantly, it's really easy to do! There are already plugins that support frameworks like RSpec, DataMapper, Sinatra, and support for others are in the works. YARD is the only Ruby documentation tool that supports storing metadata alongside your documentation. This metadata can be used to create consistent documentation in any format you wish. YARD also comes with a powerful templating system to quickly modify existing templates. -
19
tapir
Declarative, type-safe web endpoints library
Declarative, type-safe web endpoints library. With tapir, you can describe HTTP API endpoints as immutable Scala values. Each endpoint can contain a number of input and output parameters. Compile-time guarantees, develop-time completions, read-time information. Separate the shape of the endpoint (the "what"), from the server logic (the "how"). Generate documentation from endpoint descriptions. Leverage the metadata to report rich metrics and tracing information. Re-use common endpoint definitions, as well as individual inputs/outputs. Library, not a framework, integrates with your stack. Is your company already using tapir? We're continually expanding the "adopters" section in the documentation; the more the merrier! It would be great to feature your company's logo, but in order to do that, we'll need to write permission to avoid any legal misunderstandings. -
20
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. -
21
RapiDoc
RapiDoc - Custom-Element for OpenAPI Spec
Free of any frameworks, setups, configs, build steps or packaging. Can be used with any framework or just with vanilla javascript. Use It just like any other HTML Tag, Change its attribute using JavaScript and see it react to those changes. Basic knowledge of HTML is all that's required. Style it to your heart's content. Change font, logo, colors and theme. Inject external HTML or embed into another HTML document. Minimal dependencies, no runtime, and no virtual DOM ensure the lowest memory consumption, Just native and raw speed of the modern browsers. Loved by tech writers, designers, dev-ops, testers and developers alike, due to its simplicity, interoperability, and powerful features. No special build steps, runtime, or framework required. Comes with built-in the console to Try out the APIs. Supports authentication mechanism. No validation ensures you can test negative cases. -
22
Redoc
OpenAPI/Swagger-generated API Reference Documentation
Redoc is an open source tool for generating documentation from OpenAPI (formerly Swagger) definitions. With Redoc, you can generate beautiful API documentation from OpenAPI. Redoc is provided as a CLI tool (also distributed as a Docker image), HTML tag, and React component. If you have Node installed, quickly generate documentation using npx. Open the HTML file in your browser, and your API documentation is shown on the page. Redoc is highly configurable. Redoc offers OpenAPI specification extensions. -
23
kin-openapi
OpenAPI 3.0 (and Swagger v2) implementation for Go
A Go project for handling OpenAPI files. We target the latest OpenAPI version (currently 3), but the project contains support for older OpenAPI versions too. Lightweight, blazing fast, cross-platform OpenAPI 3 mock server with validation. Generate Go client and server boilerplate from OpenAPI 3 specifications. Use HTTP/2 Server Push to create fast and idiomatic client-driven REST APIs. Nomad is an easy-to-use, flexible, and performant workload orchestrator that can deploy a mix of microservice, batch, containerized, and non-containerized applications. Nomad is easy to operate and scale and has native Consul and Vault integrations. -
24
Hugo Book Theme
Hugo documentation theme as simple as plain book
Hugo documentation theme as simple as a plain book. By default, the theme will render pages from the content/docs section as a menu in a tree structure. You can set title and weight in the front matter of pages to adjust the order and titles in the menu. There are a few configuration options that you can add to your config.toml file. A simple blog is supported in the section posts. A blog is not the primary use case of this theme, so it has only minimal features. The theme supports Hugo's multilingual mode, just follow the configuration guide there. You can also tweak search indexing configuration per language in i18n folder. There are layout partials available for you to easily override components of the theme in layouts/partials/. There are a few features implemented as plugable scss styles. Usually these are features that don't make it to the core but can still be useful. -
25
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.
