Sites like maennchen.dev

Caleb Porzio's personal site: blog posts, conference talks, open-source projects and a newsletter on Laravel, Livewire and Alpine.js development

CourtBouillon, a French cooperative's catalogue of open source document tools such as the pydyf PDF creator and CSS parser

An open source project site for internationalization libraries and tools aimed at improving developer experience in software localization

phpDocumentor, a documentation tool that generates API reference docs from PHP source code, with its supporting components

Filament, a PHP admin panel framework's documentation, themes and tutorials site for building Laravel application interfaces

PHPUnit project website by Sebastian Bergmann covering the PHP testing framework, its releases, documentation, sponsors and community events

Prettier, an opinionated code formatter for JavaScript, CSS, Markdown and other languages, with editor and CI integrations

A minimalist CSS framework called Milligram, offering styles for typography, forms, grids and code, with documentation pages and examples

Ash Framework: an Elixir backend framework for modelling domains, with resources, persistence, APIs, policies and community resources

A component library and Tailwind CSS plugin providing pure-CSS UI components with semantic class names, documentation by its maintainers

Tauri 2.0, an open-source framework for building small, cross-platform desktop and mobile applications with web frontends and Rust backends

Tabler, an open-source Bootstrap-based UI kit, with documentation, a 5,000-plus outline icon set and HTML email templates, maintained by Paweł Kuna

The LaTeX Project's website on LaTeX, the document preparation and typesetting system for technical and scientific publishing, with downloads, bug reporting, help and licence text

Selenium, an open-source browser automation tool for web application testing, documented on its official project website

MDX is a documentation site for Markdown extended with JSX components, with docs, guides and blog posts

Zed, an open-source multiplayer code editor from Zed Industries with optional AI agent integration and the Agent Client Protocol

The AT Protocol documentation site: specifications, SDKs and guides for building open social web applications, maintained by Bluesky

Leanpub, a self-publishing platform where authors sell early-access and in-progress books, including technical titles on software and AI

Blog by web standards leader Lea Verou on CSS, web design, icons and open source developer tools

Symfony, a PHP web framework with documentation, components and tools for building scalable web applications

NumFOCUS, a nonprofit charity supporting open source scientific software projects such as SciPy, pandas and Jupyter

The official website for Nix and NixOS, covering the reproducible, declarative package manager and Linux distribution, with manuals and learning resources

AsyncAPI, an open source initiative and specification with tools for defining and documenting event-driven architectures, under the Linux Foundation

Typelevel is an open-source community developing Scala libraries for functional programming, with events and meetups

Rocket.Chat, an open source team chat and collaboration platform for secure, self-hosted government and enterprise communications

DevDojo is an AI website builder for developers, with a browser visual editor, templates, and Laravel auth and app features

Mautic is an open source marketing automation software project and product, with its community hub on Slack