Amber
Web application framework written in Crystal, with routing, controllers, views and a command-line tool for generating applications.
amberframework.orgrepositorydocs
Amber is a web application framework written in Crystal, with routing, controllers, views and a command-line tool that generates applications. It renders pages on the server. The 2.0 manual deployment guide builds an application into a single binary with its assets, copies it to a release directory and runs it as a service under systemd, with a TLS-terminating reverse proxy in front.
The project’s documentation covers the 2.0 beta and lists 1.5 as the stable documentation version.
Worth knowing
The 2.0 documentation describes that release as a prerelease whose web core is release-gated. The latest stable GitHub release is in the 1.x series.
Identity
Rendering and deploy
- Runs as
- Always on6
- Rendering
- On a server1
- Install with
- Homebrew5
Releases
Adoption
Sources
- 2026-10-24: links, Rendering
amberframework.org/ - 2026-10-24: links, Written in, License, GitHub stars
api.github.com/repos/amberframework/amber - 2026-10-24: links
amberframework.org/docs/v2 - 2026-10-24: Maintainer, Maintained by, License
github.com/amberframework/amber/blob/master/LICENSE - 2026-10-24: Runtime, Categories, Install with
github.com/amberframework/amber/blob/master/README.md - 2026-10-24: Runs as
amberframework.org/docs/v2/deployment/manual-deploy - 2026-10-24: First release, Current major version
api.github.com/repos/amberframework/amber/releases - 2026-10-24: Last release
api.github.com/repos/amberframework/amber/releases/tags/v1.5.0 - 2026-10-24: Contributors
api.github.com/repos/amberframework/amber/contributors