rhaiscript/rhai

Health v2 · maintenance only

Adoption not part of the score

5635 stars · 247 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

Rhai is an embedded scripting language and evaluation engine for Rust, offering a simple dynamically-typed language similar to JavaScript+Rust. It lets applications safely expose native Rust functions and types to user scripts, and supports WASM and no-std targets.

Use cases

• add a scripting engine to my Rust application
• let users write custom scripts that call Rust functions
• embed a safe sandboxed scripting language in a game or app
• run user-provided configuration logic in Rust
• evaluate dynamic expressions at runtime in Rust
• scripting support that compiles to WebAssembly or no_std

When to choose

• you need a safe, easy-to-embed scripting language tightly integrated with Rust types and functions
• you need no_std or WASM support
• you want dynamic, user-extensible behavior without compiling Rust plugins

When to avoid

• you need maximum raw script execution speed from a mature bytecode VM
• you need a full standalone language with a large ecosystem
• you need static typing or compile-time guarantees in scripts

Facets

library · maturity stable

interpreter programming-language plugin-system embedded programming-languages developer-tools rust wasm cross-platform scripting-engine embedded-scripting no-std dynamic-typing sandboxed-evaluation automation

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markdown · JSON · MCP: product_card(name="rhaiscript/rhai")