Trending Crystal Projects

This page lists the top trending Crystal projects based on the growth of GitHub stars.
It is updated once every day. The last update was on 14 Jul 2025.
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Top 50 Trending Crystal Projects

  1. cia-unix

    Decrypt CIA/3DS roms in UNIX environments (Linux and macOS)

  2. hetzner-k3s

    The easiest and fastest way to create and manage Kubernetes clusters in Hetzner Cloud using the lightweight distribution k3s by Rancher.

  3. lavinmq

    Ultra quick message queue and streaming server

  4. docker-escape-tool

    Tool to test if you're in a Docker container and attempt simple breakouts

  5. markd

    Yet another markdown parser, Compliant to CommonMark specification, written in Crystal.

  6. castblock

    Automatically skip sponsor segments and ads in YouTube videos playing on Chromecast.

  7. zotero-deb

    Packaged versions of Zotero and Juris-M for Debian-based systems

  8. crinja

    Implementation of Jinja2 template language in Crystal

  9. AHK_X11

    AutoHotkey for Linux (X11-based systems)

  10. webmock.cr

    Mock HTTP::Client

  11. lexbor

    Fast HTML5 Parser with CSS selectors. This is successor of myhtml and expected to be faster and use less memory. (by kostya)

  12. stumpy_png

    Read/Write PNG images in pure Crystal

  13. marten

    The pragmatic web framework. (by martenframework)

  14. gtk4.cr

    GTK4 bindings for Crystal

  15. Collision

    Check hashes for your files - A GUI tool to generate, compare and verify MD5, SHA-1, SHA-256, SHA-512, Blake3, CRC32 & Adler32 hashes. (by GeopJr)

  16. frost

    Web Framework for Crystal (by ysbaddaden)

  17. shainet

    SHAInet - a pure Crystal machine learning library

  18. crystalline

    A Language Server Protocol implementation for Crystal. 🔮

  19. crysterm

    Console / terminal GUI toolkit for Crystal.

  20. BLAHAJ

    [MIRROR] 🦈🏳️‍⚧️🏳️‍🌈 Gay sharks at your local terminal - lolcat-like CLI tool

  21. fast-http-server

    Super fast, zero configuration command line HTTP Server.

  22. Invidious

    Invidious is an alternative front-end to YouTube

  23. spring-83

    A speculative new protocol 🌸

  24. anyolite

    Embedded mruby/Ruby for Crystal

  25. avram

    A Crystal database wrapper for reading, writing, and migrating Postgres databases.

  26. grip

    The microframework for writing powerful web applications. (by grip-framework)

  27. crystal-patterns

    :book: Examples of GOF patterns written in Crystal

  28. multi-auth

    Standardized multi-provider OAuth authentication

  29. Cable

    It's like ActionCable (100% compatible with JS Client), but you know, for Crystal

  30. sentry

    Build/Runs your crystal application, watches files, and rebuilds/restarts app on file changes (by samueleaton)

  31. Kilt

    Generic template interface for Crystal

  32. kemal

    Fast, Effective, Simple Web Framework

  33. bottle

    Scientific computing in pure Crystal

  34. awesome-crystal

    :gem: A collection of awesome Crystal libraries, tools, frameworks and software

  35. ameba

    A static code analysis tool for Crystal

  36. oq

    A performant, and portable jq wrapper to facilitate the consumption and output of formats other than JSON; using jq filters to transform the data.

  37. ktistec

    Single user ActivityPub (https://www.w3.org/TR/activitypub/) server.

  38. List-All-Programming-Telegram-Group

    List of All Programming Telegram Group

  39. lilith

    x86-64 os made in crystal

  40. mosquito

    A background task runner for crystal applications supporting periodic (CRON) and manually queued jobs (by robacarp)

  41. Slang

    Slim-inspired templating language for Crystal (by jeromegn)

  42. icr

    Interactive console for Crystal programming language

  43. crystal

    The Crystal Programming Language

  44. route.cr

    Minimum High Performance Middleware for Crystal Web Server.

  45. clear

    Advanced ORM between postgreSQL and Crystal

  46. granite-orm

    ORM Model with Adapters for mysql, pg, sqlite in the Crystal Language. (by amberframework)

  47. crystal-db

    Common db api for crystal

  48. lucky

    A full-featured Crystal web framework that catches bugs for you, runs incredibly fast, and helps you write code that lasts.

  49. shards

    Dependency manager for the Crystal language

  50. mint-lang

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

ABOUT: The growth percentage is calculated as the increase in the number of stars compared to the previous month. We list only projects that have at least 500 stars and a GitHub organization logo set.

Index

What are some of the trending open-source Crystal projects? This list will help you:

Project Growth
1 cia-unix 8.5%
2 hetzner-k3s 5.3%
3 lavinmq 4.7%
4 docker-escape-tool 3.5%
5 markd 3.4%
6 castblock 3.1%
7 zotero-deb 2.4%
8 crinja 2.3%
9 AHK_X11 2.3%
10 webmock.cr 1.9%
11 lexbor 1.9%
12 stumpy_png 1.9%
13 marten 1.8%
14 gtk4.cr 1.8%
15 Collision 1.8%
16 frost 1.7%
17 shainet 1.6%
18 crystalline 1.4%
19 crysterm 1.4%
20 BLAHAJ 1.4%
21 fast-http-server 1.3%
22 Invidious 1.3%
23 spring-83 1.2%
24 anyolite 1.2%
25 avram 1.2%
26 grip 1.1%
27 crystal-patterns 1.0%
28 multi-auth 0.9%
29 Cable 0.8%
30 sentry 0.7%
31 Kilt 0.7%
32 kemal 0.6%
33 bottle 0.6%
34 awesome-crystal 0.6%
35 ameba 0.6%
36 oq 0.5%
37 ktistec 0.5%
38 List-All-Programming-Telegram-Group 0.5%
39 lilith 0.4%
40 mosquito 0.4%
41 Slang 0.4%
42 icr 0.4%
43 crystal 0.4%
44 route.cr 0.4%
45 clear 0.4%
46 granite-orm 0.3%
47 crystal-db 0.3%
48 lucky 0.3%
49 shards 0.3%
50 mint-lang 0.2%

Did you know that Crystal is
the 70th most popular programming language
based on number of references?