Sites like markus-baersch.de

Essays and conference talks on software architecture, data systems and technology strategy by Mike Huls

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

German author Annie Waye's blog and online shop covering her novels, author life, and publishing contract rights

German blog and newsletter by Martin Fehrensen on social media, tech platforms and algorithms, running since 2013

JSON Schema is a declarative language and documentation site for annotating and validating the structure and data types of JSON documents

A German-language collection of open-source software services run by a private individual, ad-free and funded by donations

A JavaScript toolkit, gulp.js, for automating build workflows with composable streaming tasks and plugins, documented through its project website

Can I use..., a reference site of browser support tables for web features such as HTML5, CSS3 and JavaScript

A German blog by zerforschung on security research and data leaks in apps, hotel software and public services

Open WebUI, a self-hosted software platform for running and connecting AI models, with a user community and documentation

Personal site of software developer Christoph Schneegans, covering Windows tools, web and ASP.NET projects, and a BCP 47 language tag validator

Drupal.org, the official home of the open source Drupal content management system and its community, with AI integration

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

NV Access, a nonprofit maker of NVDA, free screen reader software for blind and vision impaired computer users

Bugzilla project's website on the open-source bug-tracking software for planning and releasing software, with documentation, history and donation pages

A German blog about media criticism of the Axel Springer tabloid BILD and other German press coverage

A free open-source CDN serving popular JavaScript, CSS and font libraries, with an API and library catalogue

jsDelivr is a free open source CDN service delivering JavaScript, ESM modules and other files from npm and GitHub

Jean-Christophe Chouinard's blog of tutorials on Python, SEO, machine learning, APIs and Git

Personal home page of Eric S. Raymond hosting his open-source software, FAQs, essays and the Retrocomputing Museum

Raycast, a macOS launcher app with productivity tools, extensions and AI chat, with legal and FAQ pages

Calibre, a free open-source e-book management software for converting, organising and syncing e-books across devices

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

A German-language site by Leander Wattig offering community formats, event listings and a publishing job board, with ideas on community and marketing

A German podcast by Annika Brockschmidt and others on politics, extremism, language and memes in public debate

MarketingSyrup SEO Academy by Kristina Azarenko: technical SEO courses, an eCommerce SEO ebook, and a blog of SEO guides

F-Droid is an app store and distribution platform for free and open source Android apps

A collection of free technical SEO tools and articles, including robots.txt, hreflang, AMP and .htaccess testers, on TechnicalSEO.com

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

A German blog aggregator that links to and ranks posts from German tech, politics and culture blogs

HouseFresh is an independent air quality review site, with product tests run in its founders' home and data-led studies by Danny Ashton and team

OpenCV, the open-source computer vision library, with its services, training, partner program and blog, run by the OpenCV organisation

Eleventy, an open-source static site generator for JavaScript developers, with documentation, blog posts and community author pages

A German-language personal site of Linus Neumann, Chaos Computer Club spokesman, covering IT security, AI, and privacy talks, podcasts and media appearances

Women in Tech SEO, a community site with Slack, newsletter and virtual events for women working in search engine optimisation

Growth Memo, a Substack newsletter by Kevin Indig on SEO and growth strategy