Free Software for Self-Hosted
GitLab
A web-based tool for DevOps lifecycle management and source code hosing. GitLab, much like GitHub use the open-source technology Git for repository management and code reversion. On top of that GitLab provide extra services like issue-tracking, wiki and CI/CD pipelines for code deployment. The main difference between GitLab and GitHub is that GitLab is open-source and the whole platform can be self-hosted on your own server. GitLab also provides the same hosted repository solutions provided by GitHub.
Gitea
Gitea is a free and open-source software package for hosting software development version control using Git The software is written in Go and is a community managed fork of Gogs, released under the MIT license. With Gitea you can host your very own software project collaboration platform that can handle bug tracking, wikis, code review and team communication.
Ant Design
Ant Design is a open-source React UI library and design system that comes packed with plethora of easy-to-use components. The framework consist of UI components that are free to use for any project. Currently Ant Design is used to create UIs for big Chinese companies like Alibaba, Tencent and Baidu. Ant Design provided a suite of out-of-the-box components that are ready to use even on an enterprise-level.
Wiki.js
With Wiki.js you can run a blazing fast Wiki built with performance in mind. Wiki.js is an extensible, free and open source Wiki software written in JavaScript. Wiki.js brings a modern approach to documentation and Wiki writing, it provides a simple to use WYSIWYG editor, a Markdown editor and a visual builder to please all types of workflows. All content moderation is also tracked on a Wiki.js-powered site, which means that you can an revert to a previous state or recover a deleted page at any time and get a broad overview of content evolution. Allowing you to visually compare two versions of the same page to see exactly what changed. Wiki.js runs on virtually any platform and is compatible with either PostgreSQL, MySQL, MariaDB, MS SQL Server or SQLite.
Rome
Rome is a free and open-source JavaScript build tool that has strong conventions and aims to have minimal configuration. The toolset includes a linter, compiler and bundler for JavaScript, TypeScript, JSON, HTML, Markdown, and CSS. Rome has zero dependencies, and has largely been written from scratch by people from Facebook.
Webpack
Webpack is an open-source module bundler for JavaScript. Its main purpose is to bundle JavaScript files for usage in a browser, yet it is also capable of transforming, bundling, or packaging just about any resource or asset. It can transform front-end assets like HTML, CSS, and images where corresponding loaders ar included and takes modules with dependencies and generates static assets representing those modules.
Flutter
Flutter is an open-source UI software development kit created by Google. Flutter allows developers to write Android and iOS application in Dart. Flutter can be installed on any desktop computer and server that runs Linux, macOS or Windows. The SDK provide developers with a great developer experience with hot reload, that allows for quick iterations and a quick development workflow when building UI's, adding features and fixing bugs.
XAMPP
XAMPP is a free and open-source Apache web server stack used in web development. The XAMPP stack contains pre-configured versions of Apache HTTP Server, MariaDB, PHP, and Perl. XAMPP makes it really easy to install and use the stack on macOS, Linux or Windows.
Docusaurus
Docusaurus makes it easy to maintain open source documentation websites. With Docusaurus you can wriet docummentation and blog posts using Markdown and save time when doing so. Docusaurs automatically publish your files as static html files ready to serve on the web.