ExpressJS, Flask, Django REST framework, FastAPI, and Sinatra are the most popular tools in the category “Microframeworks”. “Simple” is the primary reason developers pick ExpressJS over its competitors, while “For it flexibility” is the reason why Flask was chosen.
Sinatra inspired web development framework for node.js -- insanely fast, flexible, and simple
A high performance, easy to learn, fast to code, ready for production web framework
Framework for quickly creating connected applications in Kotlin
PHP HTTP client that makes it easy to send HTTP requests and trivial to integrate with web services
High-performance Python framework for building cloud APIs and web app backends
Asynchronous HTTP Client/Server for asyncio and Python
High performance, extensible, minimalist Go web framework
Real-time, micro-service web framework for NodeJS