Sites like contao.org

Packagist, the main public repository of PHP packages installable with the Composer dependency manager, with package search, API and feeds

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

Oveleon, a German web and print design agency in Leverkusen offering websites, branding, marketing and development services

Atheos Cloud IDE, a lightweight web-based code editor framework built on Codiad, with documentation on setup and interface

Personal site of software engineer Mario Ranftl with notes on software engineering, system design, and web development

A personal technology blog on learning Kubernetes, self-hosting and home infrastructure, written by its owner

Nextcloud, an open source self-hosted platform for file sharing and online collaboration as a Microsoft 365 alternative

Grav, a flat-file content management system with a built-in API, MCP server and SvelteKit admin for AI agents

The NetBSD Project's home site for its free, portable Unix-like operating system, with documentation, platform lists, news and downloads

Open QuarterMaster is an open source inventory management software project with a demo instance and merchandise shop

DDEV, an open-source local development environment tool for web developers, documented on its project website with about and brand pages

Personal blog and project site by Leo Spratt on self-hosting, tech tools, photography and his music as Spectral Nova

A stock library of free and paid SVG backgrounds, icons and website graphics by designer Matt, with copy-paste export

WinSCP, a free open-source SFTP and FTP client application for Windows file transfers between local and remote computers

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

The Doctrine Project's home page for PHP libraries on database storage, object mapping, and an ORM and DBAL, with contributor guide

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

The official website of Thunderbird, a free open-source desktop and mobile email, calendar and contacts app

Kresus, a free self-hosted personal finance manager that syncs bank transactions, categorizes them and builds budgets, with documentation and a demo

Roots, an open source org building WordPress development tools such as Bedrock, Sage, Acorn and Trellis, with a blog and docs

SuiteCRM, an open source customer relationship management software product for businesses, with downloadable demos and hosted instances

PinePods is a self-hosted podcast management app built with Rust, with a blog covering its development

Textpattern CMS, a free open source content management system with tag-based templates for web designers and developers

netboot.xyz is an open source iPXE bootloader project offering a network boot menu of operating system installers, live distros and rescue tools

SnapOtter is a self-hosted file processing tool for private image and document workflows, with pages in Spanish, Hindi and Indonesian

Open-source software for streaming your own music library from a self-hosted server, with apps and downloads

PufferPanel, an open source web panel for installing and managing game servers such as Minecraft and Source dedicated servers

BeryJu.io is a personal technical blog by Jens Langhammer covering homelab setups, self-hosted infrastructure, networking experiments and GitLab CI tips

Nominatim, an open-source geocoding software and API using OpenStreetMap data for place name and address lookup, maintained by Sarah Hoffmann

Bulma, a free open-source CSS framework for building responsive websites, documented on its site by developer Jeremy Thomas

A self-hosted, open-source bookmark archive tool called LinkAce, built and documented by its developer, for saving and organizing web links

FreshRSS, a free self-hosted RSS and Atom feed aggregator with a blog and project contact pages

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

The official website of Vue.js, the open-source JavaScript framework for building web user interfaces, with its API reference and documentation

Winter CMS, an open-source content management system built on Laravel, with documentation and a challenge coin recognition programme

DockSTARTer is a tool and documentation site by its developers for quickly setting up Docker and self-hosted applications on Linux systems

Consuming Knowledge, a personal blog by software developer Brian Nesbitt on programming, code reading, and family

Open source software libraries and blog for computational design and art by Karsten Schmidt, known as thi.ng

HamsterBase is a local-first, privacy-focused knowledge management tool for saving, annotating and note-taking with keyboard shortcuts and an API