Stable Diffusion web UI
Jupyter Interactive Notebook
Develop desktop GUI applications using PHP, HTML5, JavaScript
Go minifiers for web formats
Powerful and flexible web framework written in Nim
Probably the fastest PHP web framework in the world
The OWASP ZAP core project
The little ASGI framework that shines
Enables in-process caching of secrets for Go applications
A fast, high-level web crawling and web scraping framework
Lightweight modular front-end framework for developing web interfaces
Simple library for building production-ready RESTful web services
Vaadin 6, 7, 8 is a Java framework for modern Java web applications
Scalable open source load testing tool
A framework for building messaging apps with .NET and C#
CSS & JavaScript minifier, in PHP
Emacs major mode for managing jekyll
WebApps in pure Python. No JavaScript, HTML and CSS needed
Build great things at any scale
A gulp.js generator for modern webapps
The first open source design and prototyping tool
A node.js library for testing modern web applications
Count and limit requests by key with atomic increments
Suave is a simple web development F# library
Fortio load testing library, command line tool, advanced echo server