# h3js/h3

⚡️ Minimal H(TTP) framework built for high performance and portability

Repository: https://github.com/h3js/h3
Canonical: https://ross.abutalabs.com/products/h3js-h3
Homepage: https://h3.dev
Language: TypeScript
License: MIT
License Family: permissive
Last push: 2026-08-20T15:45:59+00:00

## Health v2 (maintenance only)
Score: 98/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 98, release rhythm 98, longevity 100
- inputs: {"age_days": 2115, "days_push": 13, "days_rel": 13, "gap_med": 5, "n_releases_24m": 50}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 5415, forks 355 (observed 2026-08-28T04:09:17.832911+00:00)

## What it is
H3 is a minimal, high-performance HTTP server framework for TypeScript/JavaScript built on web standards. It is runtime-agnostic (Node.js, Deno, Bun, Workers) with a tiny, composable, tree-shakeable core and strongly-typed APIs.

## Use cases
- build a fast HTTP API server in TypeScript
- create a portable server that runs on Node, Deno, Bun, and edge workers
- build a lightweight backend for a web app
- compose small middleware handlers into a larger server
- build a minimal REST API with low latency
- serve as the HTTP layer for a meta-framework like Nuxt

## When to choose
- you want a tiny, fast, web-standards-based server framework
- you need portability across JavaScript runtimes including serverless/edge
- you prefer composable handler utilities over a heavy framework
- you are building a framework or library that needs an embedded HTTP layer

## When to avoid
- you need batteries-included features like built-in ORM, auth, or admin panels
- you prefer opinionated full-stack frameworks with conventions and scaffolding
- your team relies on Express/Koa middleware ecosystems
- you need a framework with a large plugin marketplace

## Facets
- artifact type: framework
- maturity: active
- function: web-framework, http-server, routing, middleware
- domain: web-development, backend, apis
- platform: bun, cross-platform
- tags: typescript, web-standards, runtime-agnostic, composable, minimal, high-performance, unjs, nodejs, deno, web-server

## Member repositories
- h3js/h3 (main) score 98

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:17.832911+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:57:45.326634+00:00, confidence not recorded.
  - readme: https://github.com/h3js/h3 (fetched 2026-08-28T04:09:17.832911+00:00, sha 9a9d4b2228e1)
  - homepage: https://h3.dev (fetched 2026-08-29T08:52:35.852232+00:00, sha b1f5775668ec)
  - registry_npm: https://registry.npmjs.org/h3 (fetched 2026-08-29T08:52:35.861006+00:00, sha 3bc6f0059635)
- Data as of 2026-08-30T08:39:29.467469+00:00.