Accelerate Development with a Productive Language

Productivity Highlights

Easy and Fast Ramp Up

Chapel enables users to bring new contributors up to speed in record time.

Writes Faster,
Runs Faster

Peer-reviewed studies show that Chapel is faster and more productive than alternatives.

Language Tooling Support

The Chapel language server and linter integrate with your favorite editor to supercharge your development experience.

Concise but Fast

Computer Language Benchmarks Game

When compared against other common programming languages, solutions built in Chapel are both compact and performant.

Learn More

Parallel Heat Equation

Chapel outperforms other modern languages in both productivity and performance.

Learn More

Diehl et al. Benchmarking the Parallel 1D Heat Equation Solver in Chapel, Charm++, C++, HPX, Go, Julia, Python, Rust, Swift, and Java. Euro-Par 2023.

Parallel Metaheuristics

Chapel implementations of parallel metaheuristic algorithms are more productive than Julia, Python, and OpenMP reference implementations

Learn More

Gyms et al, A comparative study of high-productivity high-performance programming languages for parallel metaheuristics. Swarm and Evolutionary Computation, 2020.

Safe and Easy Coding

Config Declarations

Language-level support for overriding default values from the command-line, at both compile-time and run-time.

Interoperability

Chapel is designed to interoperate seamlessly with libraries written in C. No need to rewrite important libraries.

Memory Safety

Scope-based (de)allocation, ownership management, default-safe strings, and other semantic checks make Chapel safer than C and C++.