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Top 19 Crystal Web Framework Projects
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Project mention: Kemal – Fast, Effective, Simple Web Framework for Crystal | news.ycombinator.com | 2026-04-23
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lucky
A full-featured Crystal web framework that catches bugs for you, runs incredibly fast, and helps you write code that lasts.
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amber
A Crystal web framework that makes building applications fast, simple, and enjoyable. Get started with quick prototyping, less bugs, and blazing fast performance. (by amberframework)
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From there, I went into a long phase of copy & paste: throw code at an LLM, ask it to analyze or rewrite, and stitch the result back in. It kind of worked. When reasoning models arrived, my confidence went up: wait a minute, wait three—freshly baked code appears. In Rails, that meant small adjustments and I was done. In Marten, I had to correct more, which made sense — newer framework, less model knowledge.
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runcobo
An api framework with type-safe params, elegant json serializer. Thanks for enjoying it! 👻👻 https://runcobo.github.io/docs/
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Shivneri
Component based MVC web framework based on fort architecture targeting good code structures, modularity & performance.
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NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
Crystal Web Frameworks discussion
Crystal Web Frameworks related posts
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A note from our sponsor - SaaSHub
www.saashub.com | 20 Jul 2026
Index
What are some of the best open-source Web Framework projects in Crystal? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | kemal | 3,879 |
| 2 | lucky | 2,725 |
| 3 | amber | 2,603 |
| 4 | amethyst | 650 |
| 5 | marten | 473 |
| 6 | grip | 291 |
| 7 | athena | 235 |
| 8 | spider-gazelle | 191 |
| 9 | frost | 120 |
| 10 | moonshine | 120 |
| 11 | Onyx | 78 |
| 12 | lattice-core | 56 |
| 13 | amatista | 53 |
| 14 | runcobo | 51 |
| 15 | carbon-crystal | 42 |
| 16 | mustafa | 33 |
| 17 | iceberg | 28 |
| 18 | Shivneri | 23 |
| 19 | chocolate | 10 |
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