uNetworking/uWebSockets.js

NestJS is an open-source Node.js framework at nestjs/nest, written primarily in TypeScript while preserving compatibility with plain JavaScript. Its README frames it as an architecture-first alternative to hand-assembling Express or Fastify, blending object-oriented, functional, and functional-reactive patterns into an Angular-inspired structure. The GitHub description bills it as aimed at server-side software that's efficient, scales, and holds up at enterprise scale, and the repo carries strong community support in the facts provided here.

Node.js Best Practices, maintained at goldbergyoni/nodebestpractices, is a curated checklist of more than 80 recommendations for building Node.js applications, organized into eight categories from project architecture to Docker. Each entry combines a short recommendation with an explanation of the risk of skipping it and a link to a deeper write-up, rather than being a plain list of links.

The Gin Go web framework offers a high-performance, minimalist approach to building web applications and REST APIs in Go. It delivers exceptional speed through its use of httprouter and provides an Express.js-like API for rapid development.

Hoppscotch is an open-source API development ecosystem, built in TypeScript and licensed under MIT, that serves as a web-based client for interacting with APIs. It offers PWA, desktop, and CLI options via add-ons, positioning itself as an alternative to commercial tools like Postman. It handles a wide range of protocols including HTTP (supporting all standard and custom methods), WebSocket, Server-Sent Events, Socket.IO, MQTT, and GraphQL. Developers can define requests with various authorization types (Basic, Bearer, OAuth 2.0, OIDC), custom headers, and parameters, and craft request bodies in formats like FormData or JSON. The tool includes features like Pre-Request Scripts and Post-Request Tests using JavaScript, environment variables, and organized collections with nested folders for managing API calls. For collaboration, it supports teams with shared collections, role-based access, and workspaces, along with a proxy mode to address CORS issues or access non-HTTPS endpoints. It also provides cloud sync for data across devices and a customizable UI with theming and keyboard shortcuts.