RIriddley·Apr 4, 2024
Not to be confused with the Crystal web framework with a similar name. https://github.com/kemalcr/kemal
In Show HN: I wrote a book on Kamal, deployment tool that's coming to Rails 8kemalcr
kemal
Crystal2015–2024
kemalcr / kemal
kemal
Fast, Effective, Simple Web Framework
8Distinct people
11Mentions
1Explicit recommenders
3.9KGitHub stars
What to know before exploring
What it is
Fast, Effective, Simple Web Framework
GitHub
Where it is used
No documented product use has been verified yet.
What people are saying
> Sinatra has been copied/emulated in nearly every programming language, and its clones have also been widely successful. I was just thinking about a Sinatra clone that works…
nathan_f77 used a recommendation phrase. One indexed comment matches. This is a phrase match, not a verdict.
No classified warning is attached to this page. Read the discussions before treating silence as approval.
Also in these discussions
No other repository is repeatedly linked in the same discussions.
This week on Hacker News
Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 3:56:07 PM UTC.
No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.
Mentions over time
HN mentions by year11 dated mentions
Observed mentions: 2015-11-01 18:20:09 UTC to 2024-04-04 16:21:31 UTC.
Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.
View mention counts and date ranges
| Period | Start (UTC) | End (exclusive, UTC) | Mentions | Submissions | Comments |
|---|---|---|---|---|---|
| 2015 | 2015-01-01 00:00:00 UTC | 2016-01-01 00:00:00 UTC | 5 | 4 | 1 |
| 2016 | 2016-01-01 00:00:00 UTC | 2017-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2017 | 2017-01-01 00:00:00 UTC | 2018-01-01 00:00:00 UTC | 3 | 0 | 3 |
| 2018 | 2018-01-01 00:00:00 UTC | 2019-01-01 00:00:00 UTC | 2 | 0 | 2 |
| 2019 | 2019-01-01 00:00:00 UTC | 2020-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2020 | 2020-01-01 00:00:00 UTC | 2021-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2021 | 2021-01-01 00:00:00 UTC | 2022-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2022 | 2022-01-01 00:00:00 UTC | 2023-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2023 | 2023-01-01 00:00:00 UTC | 2024-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2024 | 2024-01-01 00:00:00 UTC | 2025-01-01 00:00:00 UTC | 1 | 0 | 1 |
What Hacker News says
11 sourceshttps://github.com/kemalcr/kemal
No idea about ORMs though.
In Crystal 0.25Some news in the past 5 months:
Crystal is now %100 funded for a full-time developer working on core - https://twitter.com/CrystalLanguage/status/98229223882167500...
Crystal Automated Release towards 1.0 - https://crystal-lang.org/2018/03/09/crystal-automated-releas...
A summary of why vs. why not - https://medium.com/@DuroSoft/why-crystal-is-the-most-promisi...
Web Frameworks Status:
Rails inspired (with Influence from Phoenix):
Amber - https://github.com/amberframework/amber
Lucky - https://github.com/luckyframework/lucky
Both look healthy in terms of community and updates but Amber seems to have a slight edge.
Sinatra inspired:
Kemal - https://github.com/kemalcr/kemal
In The Crystal Programming LanguageKemal(https://github.com/kemalcr/kemal) is a Fast, Simple, Effective web framework written in Crystal(https://crystal-lang.org/).
In Kemal 0.20.0 releasedI originally started as a ruby / rails dev and while I still do that, Crystal is phenomenal to work with.
https://crystal-lang.org/
It's still a smaller community so frameworks and such are still being developed. Currently there's a Sinatra inspired library, Kemal:
https://github.com/kemalcr/kemal
and then there's Kemalyst, which handles MVC and the like:
https://github.com/kemalyst/kemalyst
In I made a Phoenix webapp as a veteran Rails dev> Sinatra has been copied/emulated in nearly every programming language, and its clones have also been widely successful.
I was just thinking about a Sinatra clone that works in Crystal, and it turns out that there is one: https://github.com/kemalcr/kemal
I love the idea that you can write almost the same code, and get a small web service that runs 100x (?) faster than the Ruby version.
In Sinatra 2.0 releasedKemal: Fast, Simple Web Framework for Crystal
14 points · Open discussionKemal.cr: Fast, Simple Web Framework for Crystal
2 points · Open discussionKemal: Super Fast Sinatra Like Framework Written in Crystal
2 points · Open discussionKemal: Fast, Simple Web Framework for Crystal
1 points · Open discussionLearning Crystal and making useful stuff with it. E.g a Sinatra like web framework with 10x performance https://github.com/kemalcr/kemal
In Ask HN: What are you currently learning in your spare time?