The package registry for Crystal

Versions, dependencies and generated API documentation, indexed straight from the source repository.

Shards
6,300
Stars
142,177
Dependency links
10,490

Add a dependency

Declare it in shard.yml, then fetch it.

dependencies:
  kemal:
    github: kemalcr/kemal
    version: ~> 1.6.0

Install

Resolves the tree and writes shard.lock.

shards install

Publish

Tag a release and the registry indexes it.

git tag -a v1.0.0 -m "Release"
git push --tags

Most starred

invidious

2.20260804.1

github.com/iv-org/invidious

Invidious is an alternative front-end to YouTube

25567 0 DocsAGPL-3.0-only

crystal

1.22.0

github.com/crystal-lang/crystal

The Crystal standard library and compiler.

20464 3 DocsApache-2.0 WITH Swift-exception

mint

0.29.0

github.com/mint-lang/mint

🍃 A refreshing programming language for the front-end web.

4270 0 DocsBSD-3-Clause

kemal

1.15.0

github.com/kemalcr/kemal

Fast, Effective, Simple Web Framework

3929 487 DocsMIT

hetzner-k3s

2.6.0

github.com/vitobotta/hetzner-k3s

The easiest and fastest way to create production-ready Kubernetes clusters on Hetzner Cloud

3709 0 DocsMIT

Recently updated

All shards

qt5

0.1.0

github.com/Papierkorb/qt5.cr

Qt5 bindings for Crystal

216 2 DocsMPL-2

bindgen

0.7.0

github.com/Papierkorb/bindgen

C/C++/Qt binding and wrapper generator

191 3 DocsGPLv3

memo

0.12.1

github.com/trans/memo

Memo - Semantic search and vector storage library for Crystal. Provides chunking, embedding storage, similarity search, and RRF fusion.

1 0 DocsMIT