Eclipse Sprotty is an open-source project enabling the creation of powerful diagramming tools and graphical visualizations.

• GitHub - eclipse-sprotty/sprotty A diagramming framework for the web
• Introduction Sprotty

With Cypress, you can easily create tests for your modern web applications, debug them visually, and automatically run them in your continuous integration builds.

GitHub - cypress-io/cypress Fast, easy and reliable testing for anything that runs in a browser.

• The first CSS framework based on Material Design 3.
• 10x smaller than others CSS frameworks based on Material Design.
• Translates Material Design to HTML semantic standard.
• Ready to use with any JS framework.
• Highly focused on DX.

Stimulus is a JavaScript framework with modest ambitions. It doesn’t seek to take over your entire front-end—in fact, it’s not concerned with rendering HTML at all. Instead, it’s designed to augment your HTML with just enough behavior to make it shine. Stimulus pairs beautifully with Turbo to provide a complete solution for fast, compelling applications with a minimal amount of effort.

All popular icon sets, one framework

React-admin offers the best developer experience, lets you focus on business needs, and build delightful user interfaces.
Build internal tools / ERPs / B2B apps, fast

Build contextual AI assistants and chatbots in text and voice with our open source machine learning framework. Scale it with our enterprise grade platform.

Markdoc is a powerful, flexible, Markdown-based authoring framework.
From personal blogs to massive documentation sites, Markdoc is a content authoring system that grows with you.

Ember.js is a productive, battle-tested JavaScript framework for building modern web applications. It includes everything you need to build rich UIs that work on any device.

A production-ready motion library for React. Utilize the power behind Framer, the best prototyping tool for teams. Proudly open source.A production-ready motion library for React.
Utilize the power behind Framer, the best prototyping tool for teams.
Proudly open source.

Muprh is an open-source CMF built on top of Symfony that helps you to build your own CMS with several domains and languages. It comes with a fully implemented and customizable tree manager, a CRUD generator, a 2FA authentication, settings and tasks managers, basic web analytics.

The only framework that makes responsive email easy. MJML is a markup language designed to reduce the pain of coding a responsive email.

Build faster websites with less client-side JavaScript

KNACSS, c’est un micro-framework CSS, un peu comme une feuille de style CSS de base sur-vitaminée qui permet de commencer un projet à partir de zéro tout en tenant compte de bonnes pratiques générales (reset, accessibilité, performance, responsive webdesign).