amberframework/amber
A Crystal web framework that makes building applications fast, simple, and enjoyable. Get started with quick prototyping, less bugs, and blazing fast performance. observed · 2026-08-28
Health v2 · maintenance only
86/100
- Activity 97
- Release rhythm 63
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 3425
- days_rel: 32
- days_push: 20
- n_releases_24m: 1
Adoption not part of the score
2604 stars · 204 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
Amber is a full-stack web application framework for the Crystal language, inspired by Rails, Phoenix, and Kemal, providing routing, controllers, ECR views, ORM (Grant), migrations (Micrate), and code generators. It ships with a standalone CLI that scaffolds complete server-rendered web applications with zero-setup SQLite by default.
Use cases
- build a web application in Crystal
- rails-like framework for crystal
- scaffold a CRUD web app with generators
- server-rendered web app with ORM and migrations
- high-performance full-stack web framework
- quickly prototype a web API or site
- generate a web app without node.js or a database server
When to choose
- you want a Rails/Phoenix-style batteries-included framework with Crystal's compiled performance
- you need generators, scaffolding, ORM, and migrations wired together out of the box
- you want a zero-setup SQLite-first start with easy PostgreSQL/MySQL options
- you value opinionated conventions and a coherent application structure
When to avoid
- you need a guaranteed production-stable release — the V2 line is still beta
- you're not working in Crystal or unwilling to learn the language
- you need a minimal micro-framework or full control over component choices
- you require first-class Windows or Intel macOS support, which are not release-gated
Facets
framework · maturity active
web-framework routing templating orm cli middleware websocket web-development backend developer-tools cross-platform windows cli cross-platform crystal rails-inspired ecr-templates grant-orm micrate-migrations scaffold-generator server-rendered opinionated-framework scaffolding linux macos
10 sources
- readme: https://github.com/amberframework/amber · fetched 2026-08-28 · ee3cbe9455ef
- homepage: https://amberframework.org · fetched 2026-08-29 · 1a44264ebd1b
- site_page: https://amberframework.org/docs/v2 · fetched 2026-08-29 · 5acccc9420d4
- site_page: https://amberframework.org/docs/v2/getting-started/installation · fetched 2026-08-29 · 23cf2cda6318
- site_page: https://amberframework.org/docs/v2/guides/web-template · fetched 2026-08-29 · 0917d6bf4a77
- site_page: https://amberframework.org/docs/v2/guides/native-preview · fetched 2026-08-29 · b2ff0a41aca5
- site_page: https://amberframework.org/docs/v2/guides/models/grant · fetched 2026-08-29 · 60fbf2ebd2ee
- site_page: https://amberframework.org/releases · fetched 2026-08-29 · b294e3afe082
- site_page: https://amberframework.org/amber-way · fetched 2026-08-29 · 319fec275973
- site_page: https://amberframework.org/characters/amber · fetched 2026-08-29 · 5af7e5a411a7
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| amberframework/amber | main | 86 |
For agents
markdown · JSON · MCP: product_card(name="amberframework/amber")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem