Express
OpenJS Foundation · Web frameworks & UI
Minimal, unopinionated web framework for Node.js with routing and middleware, the long-standing default for HTTP servers in the Node ecosystem
MITOpen sourceFreeLocalSelf-hostedNov 2, 2026
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FastAPI
Sebastián Ramírez (tiangolo) and FastAPI contributors · API development & tooling
Python web framework for building HTTP APIs from type-annotated functions, with automatic validation through Pydantic and generated OpenAPI documentation
MITOpen sourceFreeLocalSelf-hostedNov 2, 2026
Hono
Hono project (Yusuke Wada and contributors) · Web frameworks & UI
Small TypeScript web framework built on Web Standard APIs that runs unchanged on Cloudflare Workers, Deno, Bun, Node.js and other JavaScript runtimes
MITOpen sourceFreeLocalSelf-hostedNov 2, 2026
OpenAPI Specification
OpenAPI Initiative (Linux Foundation) · API development & tooling
Vendor-neutral, machine-readable standard for describing HTTP APIs in JSON or YAML, maintained by the OpenAPI Initiative under the Linux Foundation
Apache-2.0Open sourceFreeLocalNov 2, 2026
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