Welcome to Claro!

Claro is a statically typed JVM language that provides a well-lit path to building simple, highly concurrent, and scalable applications.

Dependency Management Done Right

Claro was designed with modern build tooling in mind:

• Swap any dependency without changing a single line of source code
• Runtime "Dependency Injection" frameworks are a thing of the past
• First class Module system

Fearless Concurrency

Developed by a Xoogler taking inspiration from years of hands-on development experience with Google-internal backend web frameworks, Claro moves well beyond async/await. Claro’s declarative, DAG-based structured concurrency model provides an easy-to-use abstraction to statically guarantee that programs are:

• Non-blocking
• Data-race free
• Deadlock free
• Optimally scheduled
• Scalable by default

Data Oriented

• Strict separation between data and functionality
• Mutability tracked at the type system level
• Extremely flexible built in algebraic data types
• Model arbitrary data structures with zero boilerplate

Unapologetically Practical

• Bi-directional type inference
• Robust standard library
• Builtin external package manager
• Build time metaprogramming

Designed to Scale with You

• Incremental compilation out of the box
• Code reuse made simple
• Develop codebases of any size without devolving into a spaghetti labyrinth

Actively In Development