All European SaaS

LibreSpeed is a lightweight, self-hosted internet speed test built with JavaScript. It measures download, upload, ping, and jitter without requiring Flash or Java. Fully open source, privacy-focused, and supports multiple servers, Docker, and mobile devices.

JSFiddle is an online IDE and community platform for testing and sharing HTML, CSS, and JavaScript code snippets called fiddles. It supports libraries like jQuery and offers live preview, syntax highlighting, and real-time collaboration.

W3Schools

Developer Tools

EU Based

W3Schools is an online learning platform for web development, offering tutorials and references on HTML, CSS, JavaScript, and other web technologies. It provides interactive examples and exercises for beginners and experienced developers alike.

miniPaint is a browser-based image editor built with HTML5 and JavaScript. It lets users edit photos, draw, apply effects, and work with layers directly online without any installation. An Electron desktop version is also available.

Microstudio

Developer Tools

EU Based

microStudio is a free, open-source online game engine for creating 2D games in the browser. It supports microScript, JavaScript, Python, and Lua, with built-in sprite and map editors, real-time collaboration, and one-click export to HTML5, Windows, Linux, and macOS.

Alinea CMS is a modern, Git-based headless content management system built for developers. It offers a clean editing interface and stores content in flat files, integrating seamlessly with JavaScript frameworks.

Openspeedtest

Infrastructure & Cloud

EU Based

OpenSpeedTest is a free, open-source bandwidth testing tool that measures download and upload speeds on any device. Built with HTML5 and JavaScript, it supports connections from 1 Kbps to 1 Gbps+ and can be self-hosted via Docker or installed natively.

Kotlin

Developer Tools

EU Mentions

Kotlin is a modern, statically typed programming language developed by JetBrains that runs on the JVM and can be compiled to JavaScript or native code. It is fully interoperable with Java and is officially supported for Android development.

Js Bin

Developer Tools

EU Mentions

JS Bin is an open source collaborative tool for writing and testing HTML, CSS, and JavaScript in the browser. Code is entered in split panes with live output preview, shareable via short URLs, with support for popular JS libraries.