Top Crystal repositories on GitHub

Statically typed compiled language with Ruby-like ergonomics.

Ranked by stars across 143 Crystal repositories on GitHub. Refreshed daily.

1
crystal-lang/crystal★ 20,264 · ⑂ 1,670
The Crystal Programming Language
- crystal
- hacktoberfest
- compiler
- crystal-language
- programming-language
2
iv-org/invidious★ 19,595 · ⑂ 2,142
Invidious is an alternative front-end to YouTube
- invidious
- watch
- agplv3
- youtube
- video
- youtube-video
3
mint-lang/mint★ 4,246 · ⑂ 152
🍃 A refreshing programming language for the front-end web.
- mint-lang
- language
- compiler
- programming-language
- compile-to-js
- crystal
4
kemalcr/kemal★ 3,871 · ⑂ 196
Fast, Effective, Simple Web Framework
- crystal
- kemal
- web-framework
- websocket
- api
- fast
5
veelenga/awesome-crystal★ 3,547 · ⑂ 327
:gem: A collection of awesome Crystal libraries, tools, frameworks and software
- awesome
- crystal
- shards
- list
- awesome-list
6
vitobotta/hetzner-k3s★ 3,518 · ⑂ 214
The easiest and fastest way to create production-ready Kubernetes clusters on Hetzner Cloud
- kubernetes
- k8s
- devops
- hetzner
- hetzner-cloud
- hetzner-api
7
luckyframework/lucky★ 2,718 · ⑂ 170
A full-featured Crystal web framework that catches bugs for you, runs incredibly fast, and helps you write code that lasts.
- crystal
- web
- web-framework
- lucky-framework
- hacktoberfest
8
amberframework/amber★ 2,603 · ⑂ 205
A Crystal web framework that makes building applications fast, simple, and enjoyable. Get started with quick prototyping, less bugs, and blazing fast performance.
- crystal
- web
- cohesive
- efficient
- fast
- framework
9
getmango/Mango★ 1,783 · ⑂ 130
Mango is a self-hosted manga server and web reader
- manga-reader
- self-hosted
- manga
- manga-server
- crystal-lang
- web-application
10
hendisantika/List-All-Programming-Telegram-Group★ 1,472 · ⑂ 361
List of All Programming Telegram Group
- telegram-group
- programming-language
- kotlin
- android
- java
- user
11
Morantron/tmux-fingers★ 1,399 · ⑂ 64
copy pasting in terminal with vimium/vimperator like hints.
- tmux
- tmux-plugins
- vimium
- vimperator
- hint
- productivity
12
owasp-noir/noir★ 1,189 · ⑂ 107
Hunt every Endpoint in your code, expose Shadow APIs, map the Attack Surface.
- attack-surfaces
- pentesting
- security
- devsecops
- hacktoberfest
- owasp
13
ffwff/lilith★ 1,175 · ⑂ 27
x86-64 os made in crystal
- crystal
- operating-system
14
phil294/AHK_X11★ 1,006 · ⑂ 26
AutoHotkey for Linux (X11-based systems)
15
oprypin/nightly.link★ 956 · ⑂ 34
Downloads the latest "nightly" build/artifact from a continuous testing workflow
- github
- github-actions
- continuous-delivery
16
cloudamqp/lavinmq★ 916 · ⑂ 56
Ultra quick message queue and streaming server
- message-queue
- server
- amqp
- background-jobs
- job-queue
- message-broker
17
crystal-lang/shards★ 787 · ⑂ 109
Dependency manager for the Crystal language
18
hugopl/sidekiq.cr★ 778 · ⑂ 73
Simple, efficient job processing for Crystal
19
amethyst-framework/amethyst★ 649 · ⑂ 42
Amethyst is a Rails inspired web-framework for Crystal language
- crystal
- middleware
20
askn/crystal-by-example★ 559 · ⑂ 38
Crystal By Example
- crystal
- examples
21
crystal-ameba/ameba★ 558 · ⑂ 41
A static code analysis tool for Crystal
- crystal
- linter
- ameba
- code-analysis
- static-analysis
- formatter
22
elbywan/crystalline★ 506 · ⑂ 34
A Language Server Protocol implementation for Crystal. 🔮
- crystal
- lsp
- lsp-server
- vscode-language
23
crystal-community/icr★ 505 · ⑂ 40
Interactive console for Crystal programming language
- crystal
- repl
24
will/crystal-pg★ 481 · ⑂ 81
a postgres driver for crystal
- crystal
- postgres
25
martenframework/marten★ 471 · ⑂ 31
The pragmatic web framework.
- crystal
- web
- framework
- http
- server
- crystal-language

Find Crystal engineers and maintainers

The list above ranks the most-starred public Crystal repositories, drawn from the public GitHub graph. Across 143 Crystal repositories in the public graph, the maintainers, top contributors, and recurring committers are a powerful signal for where Crystal expertise lives.

Behind every popular Crystalproject is a small group of people who actually shipped it. They’re the Crystalengineers, library authors, and infrastructure builders worth knowing — whether you’re hiring, partnering, or doing technical research.

Refolk turns this list into a search. Ask for “Crystal maintainers hiring”, “contributors to Crystal repos based in Europe”, or “companies whose engineers ship Crystal” and Refolk returns a ranked shortlist with the commits, repos, and profiles that earned each person a spot.

How this list is built

Refolk searched GitHub for public repositories whose primary language is Crystal, ranked them by stargazer count, and kept those with at least 100 stars. The list refreshes once a day.

Last refreshed: Thu, 07 May 2026 05:55:37 GMT

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Top repositories in other languages

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