16 engineers on Hacker News describe using Crystal first-hand: 9 endorse it, 0 regret it, 6 are mixed.
“I still have systems deployed running Crystal agents, in production, without issue or memory leaks, for years.”
mixed · production · sho · 2026-10-22 · source ↗ · wrong label?“I've written several things in Crystal in prod and it has been very good.”
endorse · production · relistan · 2025-04-11 · source ↗ · wrong label?“Crystal version now runs in prod in about 30 minutes.”
endorse · production · prh8 · 2025-04-11 · source ↗ · wrong label?“We use it in production for our products at https://ark.fm and are actively working to move all of our Rails apps over to Crystal”
endorse · production · noaheverett · 2022-10-30 · source ↗ · wrong label?“I like Crystal and played with it a little bit. I tried to use it in production for a small project”
endorse · production · gls2ro · 2021-11-19 · source ↗ · wrong label?“Yes, we run several production services on it... macros resolve to actual crystal code at compile time, so some of the ruby meta-programming requires a rethink.”
mixed · production · hootbootscoot · 2020-06-23 · source ↗ · wrong label?“We run it in production. Our apps are mostly Ruby but we have been rewriting services in Crystal... consumes 10x less memory and performs around 20-35x better”
mixed · production · mauricio · 2020-06-23 · source ↗ · wrong label?“Pain points with crystal have mostly been about one of the couple packages i depend on have a breaking change.”
mixed · production · devmunchies · 2020-06-07 · source ↗ · wrong label?“I have Crystal apps running in production without problems and great success.”
endorse · production · deedubaya · 2017-12-28 · source ↗ · wrong label?“I have some Crystal running in production. ... Crystal has been great, and I really like the way it started going, but...”
mixed · production · deedubaya · 2017-12-19 · source ↗ · wrong label?“it was requiring too much memory so my droplet in digital ocean was failing to compile... it's a great language.”
mixed · personal · G4BB3R · 2017-12-06 · source ↗ · wrong label?“I've been using Crystal for more than 2 years have some projects in production.”
endorse · production · 2 yr · sdogruyol · 2017-10-28 · source ↗ · wrong label?“I've been using and contributing to Crystal since 2015 and i can easily say that it's really great potential.”
endorse · production · 1.5 yr · sdogruyol · 2016-12-19 · source ↗ · wrong label?“I've been using and contributing to crystal since 2015 too, and I've come to really love the language and community.”
endorse · personal · 1 yr · RX14 · 2016-12-19 · source ↗ · wrong label?“We've been using Crystal in production(at Protel) for more than 6 months for some heavy load APIs (100-200 req/s).”
endorse · production · 0.5 yr · sdogruyol · 2016-08-04 · source ↗ · wrong label?“the first time I tried Crystal, years ago.”
neutral · personal · Malazath · 2026-10-22 · source ↗ · wrong label?