crystal-lang.org

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• property: og:title content: Crystal
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• name: description content: Crystal is a general-purpose, object-oriented programming language. With syntax inspired by Ruby, it’s a compiled language with static type-checking. Types are resolved by an advanced type inference algorithm.
• property: og:description content: Crystal is a general-purpose, object-oriented programming language. With syntax inspired by Ruby, it’s a compiled language with static type-checking. Types are resolved by an advanced type inference algorithm.
• property: og:url content: https://crystal-lang.org/
• property: og:site_name content: The Crystal Programming Language
• property: og:type content: website
• name: twitter:card content: summary
• property: twitter:title content: Crystal
• name: twitter:site content: @CrystalLanguage
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• Blog
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• https://forum.crystal-lang.org/
• http://crystal-lang.org/feed.xml
• Latest release:
• Install
• Getting Started
• https://play.crystal-lang.org/#/cr
• Intro
• Rich stdlib
• Types
• Flow typing
• Concurrency
• C-bindings
• Macros
• Shards
• Language specification
• Check the API docs
• More about the type system
• Read more about concurrency
• Learn how to bind to C libraries
• Read more about Macros
• Read more about Shards
• Crystal talk at FOSDEM 2026
• Community
• #events
• #talk
• #community
• #foss
• #fosdem
• Wind of change (or maybe not)
• #people
• #team
• Crystal Compass
• #Crystal Compass
• #ecosystem
• #Manas.Tech
• Margret Riegert joins the Core Team
• Project
• #core-team
• Crystal Core Team
• Releases
• http://crystal-lang.org/mailto:[email protected]
• http://crystal-lang.org/#success-stories
• LavinMQ: Understanding code to get the best performance
• Crystal: the
• Automating smart buildings with Crystal
• Success stories
• Used in production
• Home
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• https://forum.crystal-lang.org
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• newsletter

• https://github.com/crystal-lang/crystal
• CSP
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• https://opencollective.com/crystal-lang
• Crystal Compass
• https://www.84codes.com/
• https://manas.tech/
• https://place.technology/
• Edit on GitHub
• file an issue
• https://discord.gg/YS7YvQy
• https://www.reddit.com/r/crystal_programming/
• web
• https://matrix.to/#/#crystal-lang_crystal:gitter.im
• web
• https://www.youtube.com/@CrystalLanguage
• https://fosstodon.org/@CrystalLanguage
• https://twitter.com/CrystalLanguage
• Apache License, Version 2.0
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