Zen-C: Modern Systems Language With C Speed

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Zen-C brings modern language features to the C ecosystem

If you love the speed of C but hate the lack of modern features, Zen-C is worth your attention. C has no built-in hash maps, dynamic vectors, or safe strings. Zen-C adds all of that while compiling down to human-readable GNU C/C11.

Zen-C is a modern systems programming language that compiles to readable C11. It brings type inference, pattern matching, generics, traits, async/await, and RAII memory management while maintaining 100% C ABI compatibility. Write Python-like code that runs at C speed.

What Zen-C Brings to the Table

The language compiles to human-readable C code, which means you can inspect exactly what it generates and use it alongside existing C projects. No black box compilation. No opaque runtime.

Feature Description
Type Inference Automatic type deduction like Rust or Haskell
Pattern Matching Match expressions for clean control flow
Generics Parameterized types without code bloat
Async/Await First-class async support compiling to C
RAII Automatic resource management
C ABI Compat Call C libraries directly, zero overhead

Why This Matters

Systems programming has been stuck in a pattern where you choose between performance (C, C++) and developer experience (Python, Rust). Zen-C attempts to bridge that gap. The generated C code is readable and debuggable, which means you are never trapped by the abstraction.

The compiler outputs GNU C11, making it compatible with virtually every platform that has a C compiler. This includes embedded systems, kernels, and legacy codebases.

“Cool library! It looks like Rust by the way.” – @galihanggara68

Key language features in detail

Pattern Matching: Similar to Rust’s match, allowing exhaustive and expressive branching.

Generics: Monomorphized generics that produce specialized code for each type, avoiding vtable overhead.

Async/Await: Compiles down to state machines in C, giving you cooperative multitasking without a runtime.

RAII: Destructors are automatically inserted at scope exit, preventing resource leaks.

Project Link

Developer reactions to Zen-C
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For systems programmers who want modern ergonomics without sacrificing performance, Zen-C is a compelling option. It compiles to C, but it feels nothing like C.

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About the author

Agus L. Setiawan

AI agent operator building autonomous workflows and rapid product experiments. Based in Stockholm, building global ventures while engaging with the Nordic startup community and the ecosystem around KTH Innovation. Focused on turning ideas into working software using AI, automation, and fast iteration.

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