1.owasp-noir / noir
Hunt every Endpoint in your code, expose Shadow APIs, map the Attack Surface.
- attack-surfaces
- pentesting
- security
- devsecops
- hacktoberfest
- owasp
- +5 more
+119 stars
from 1,356 · score 4.79
Trending repositories
Ranked by Attention Score: stars gained over the last 90 complete days
58 repositories by Attention Score · Aug 7, 2026 – Nov 4, 2026 (UTC)
2.vitobotta / hetzner-k3s
The easiest and fastest way to create production-ready Kubernetes clusters on Hetzner Cloud
- kubernetes
- k8s
- devops
- hetzner
- hetzner-cloud
- hetzner-api
- +5 more
+69 stars
from 3,646 · score 4.25
3.kemalcr / kemal
Fast, Effective, Simple Web Framework
- crystal
- kemal
- web-framework
- websocket
- api
- fast
- +4 more
+36 stars
from 3,896 · score 3.61
4.veelenga / awesome-crystal
:gem: A collection of awesome Crystal libraries, tools, frameworks and software
- awesome
- crystal
- shards
- list
- awesome-list
+24 stars
from 3,547 · score 3.22
5.elbywan / crystalline
A Language Server Protocol implementation for Crystal. 🔮
- crystal
- lsp
- lsp-server
- vscode-language
+17 stars
from 516 · score 2.89
6.martenframework / marten
The batteries-included web framework for Crystal.
- crystal
- web
- framework
- http
- server
- crystal-language
- +5 more
+15 stars
from 475 · score 2.77
7.luckyframework / lucky
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
+14 stars
from 2,721 · score 2.71
8.crystal-ameba / ameba
A static code analysis tool for Crystal
- crystal
- linter
- ameba
- code-analysis
- static-analysis
- formatter
- +1 more
+11 stars
from 561 · score 2.48
9.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.
- crystal
- web
- cohesive
- efficient
- fast
- framework
- +5 more
+7 stars
from 2,598 · score 2.08
10.sjdonado / bit
Fast, lightweight, self-hosted URL shortener service with minimal click tracking
- dockerfile
- kemal
- self-hosted
- sqlite3
- url-shortener
- crystal
+7 stars
from 103 · score 2.08
+4 stars
from 236 · score 1.61
12.sdogruyol / cryload
HTTP load testing for CI/CD — honest latency, CI thresholds, single binary, JSON output
- benchmark
- cli
- http
- load-testing
- command-line
- crystal
- +2 more
+4 stars
from 213 · score 1.61
13.Sija / raven.cr
Raven is a Crystal client for Sentry
- crystal
- sentry
- crash-reporting
- error-monitoring
- error-reporting
+4 stars
from 132 · score 1.61
+3 stars
from 312 · score 1.39
+3 stars
from 236 · score 1.39
16.icyleaf / markd
Yet another markdown parser, Compliant to CommonMark specification, written in Crystal.
- crystal
- markdown
- commonmark
- gfm
- markdown-flavors
+3 stars
from 127 · score 1.39
17.hugopl / gtk4.cr
GTK4 bindings for Crystal
+3 stars
from 126 · score 1.39
18.crystal-cache / cache
A key/value store where pairs can expire after a specified interval
- crystal
- cache
- filesystem
- expiration
- hacktoberfest
+3 stars
from 51 · score 1.39
19.crystal-garage / lustra
Advanced ORM between PostgreSQL and Crystal
- crystal
- orm
- postgresql
- postgres
- hacktoberfest
- geometry
+3 stars
from 26 · score 1.39
20.jbox-web / apt-larder
apt-larder - stock your packages, serve them fresh.
+3 stars
from 5 · score 1.39
21.mosquito-cr / mosquito
A background task runner for crystal applications supporting periodic (CRON) and manually queued jobs
- crystal
- background-jobs
- fast
- redis
+2 stars
from 243 · score 1.10
+2 stars
from 90 · score 1.10
23.stephannv / blueprint
Write HTML in plain Crystal
+2 stars
from 83 · score 1.10
24.hugoabonizio / schedule.cr
:clock3: Run periodic tasks in Crystal
- crystal
- cronjob
- schedule
- tasks
- hacktoberfest
+2 stars
from 76 · score 1.10
25.hanneskaeufler / crytic
Mutation testing for crystal.
- crystal
- crystal-language
- testing
- mutation-testing
- hacktoberfest
+2 stars
from 69 · score 1.10
26.hahwul / xssmaze
XSSMaze is a web service designed to test and improve the performance of security testing tools by providing various cases of XSS vulnerabilities.
+2 stars
from 37 · score 1.10
27.omarluq / termisu
Minimalistic API for writing text-based user interfaces in pure Crystal 🍮
- crystal-lang
- crystal-language
- term
- termbox
- terminal-applications
- terminal-io
- +3 more
+2 stars
from 34 · score 1.10
28.marghidanu / werk
Local CI pipeline runner with parallel execution and Docker support.
+2 stars
from 32 · score 1.10
29.soya-daizu / goban
A fast and efficient QR/Micro QR/rMQR Code implementation in Crystal lang
- crystal
- qrcode
- qrcode-encoder
- qrcode-generator
- microqrcode
- rmqrcode
+2 stars
from 32 · score 1.10
30.sbsoftware / to_html.cr
The fastest HTML builder engine for Crystal
+2 stars
from 20 · score 1.10
+1 stars
from 506 · score 0.69
32.grip-framework / grip
The microframework for writing powerful web applications.
- grip
- crystal
- web-framework
- websocket
- phoenix
- routing
- +3 more
+1 stars
from 292 · score 0.69
+1 stars
from 211 · score 0.69
34.BrightSec / shainet
SHAInet - a pure Crystal machine learning library
- neural-network
- machine-learning
- deep-learning
- deep-neural-networks
- crystal
- convolutional-neural-networks
+1 stars
from 197 · score 0.69
35.luckyframework / avram
A Crystal database wrapper for reading, writing, and migrating Postgres databases.
- orm
- lucky-framework
- crystal
- hacktoberfest
+1 stars
from 182 · score 0.69
36.crystal-lang / crystal-sqlite3
SQLite3 bindings for Crystal
+1 stars
from 160 · score 0.69
+1 stars
from 156 · score 0.69
+1 stars
from 152 · score 0.69
39.cable-cr / cable
It's like ActionCable (100% compatible with JS Client), but you know, for Crystal
- crystal
- crystal-language
- lucky-framework
- actioncable
- websockets
- realtime
- +1 more
+1 stars
from 136 · score 0.69
40.jtomschroeder / crystalline
A collection of containers & algorithms for the Crystal programming language
- crystal
- algorithms
+1 stars
from 129 · score 0.69
+1 stars
from 108 · score 0.69
+1 stars
from 99 · score 0.69
+1 stars
from 88 · score 0.69
+1 stars
from 73 · score 0.69
45.kemalcr / kemal-session
Powerful Session Management for Kemal applications
- kemal
- session
- crystal
- middleware
+1 stars
from 65 · score 0.69
+1 stars
from 57 · score 0.69
+1 stars
from 55 · score 0.69
+1 stars
from 49 · score 0.69
49.mamantoha / shards-info
Source code of https://shards.info/
+1 stars
from 45 · score 0.69
50.crystal-money / money
💰 Crystal shard for dealing with money and currency conversion
- crystal
- money
- currency
- cryptocurrency
- conversion
- exchange
+1 stars
from 44 · score 0.69
51.thewalkingtoast / mpngin
A simple and fast URL shortener with built in stats.
- crystal
- crystal-language
- redis
- url-shortener
+1 stars
from 35 · score 0.69
+1 stars
from 31 · score 0.69
53.crystal-loot / selenium.cr
Selenium library for Crystal
+1 stars
from 27 · score 0.69
54.spider-gazelle / qr-code
a QR Code implementation written in crystal lang
+1 stars
from 23 · score 0.69
+1 stars
from 17 · score 0.69
+1 stars
from 11 · score 0.69
57.mamantoha / toon-crystal
Crystal implementation of the Token-Oriented Object Notation(TOON) serialization format
- data-format
- llm
- serialization
- tokenizer
+1 stars
from 9 · score 0.69
58.GiavaScript / GiavaScript
GiavaScript JavaScript runtime ✨💎🚀✨
+1 stars
from 6 · score 0.69