# bikeshaving/crank

The Just JavaScript UI Framework

Repository: https://github.com/bikeshaving/crank
Canonical: https://ross.abutalabs.com/products/crank
Homepage: https://crank.js.org
Language: TypeScript
License: MIT
License Family: permissive
Topics: jsx, components, framework, generators, promises, crank, javascript
Last push: 2026-08-21T15:47:59+00:00

## Health v2 (maintenance only)
Score: 94/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 98, release rhythm 86, longevity 100
- inputs: {"age_days": 2555, "days_push": 12, "days_rel": 18, "gap_med": 31, "n_releases_24m": 6}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2795, forks 81 (observed 2026-08-28T04:07:22.340238+00:00)

## What it is
Crank.js is a JavaScript/TypeScript UI framework for building websites and applications where components are plain functions, generators, and promises instead of hook-based classes. It supports declarative rendering, async components, and SSR/SSG with no compiler or hooks required.

## Use cases
- build a web app with plain JavaScript components
- framework without hooks or dependency arrays
- async components that await data before rendering
- server-side rendering with a JSX framework
- write UI components using generators for state and lifecycle
- use JSX without a build step via tagged templates

## When to choose
- you want state as local variables and lifecycle as plain control flow
- you prefer async/await components over effect hooks
- you want a lightweight JSX framework with no compiler requirement

## When to avoid
- you need a large ecosystem of third-party components and tooling
- your team is deeply invested in React-specific libraries and patterns
- you need mature, battle-tested production guarantees at scale

## Facets
- artifact type: framework
- maturity: active
- function: frontend-framework, ssr, templating, web-framework
- domain: web-development, frontend
- platform: browser, cross-platform
- tags: jsx, generators, async-components, no-hooks, typescript, ui-framework, nodejs, web-server

## Member repositories
- bikeshaving/crank (main) score 94

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:22.340238+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 2026-08-30T08:14:40.308982+00:00, confidence not recorded.
  - readme: https://github.com/bikeshaving/crank (fetched 2026-08-28T04:07:22.340238+00:00, sha c19233a28369)
  - homepage: https://crank.js.org (fetched 2026-08-29T09:55:07.441512+00:00, sha 0eb33927b25f)
  - site_page: https://crank.js.org/guides/getting-started (fetched 2026-08-29T09:55:07.450894+00:00, sha 15784c608048)
- Data as of 2026-08-30T08:39:29.467469+00:00.