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boa-dev/boa

Boa is an embeddable Javascript engine written in Rust.

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What it does

Boa is a JavaScript engine — the core software that reads and runs JavaScript code — built using the Rust programming language, covering over 90% of the latest JavaScript standard. Think of it like an alternative to the JavaScript engines inside Chrome or Firefox, but designed to be embedded inside other applications rather than a browser.

Why it matters

As Rust gains traction for building fast, safe software, having a JavaScript engine written in Rust opens the door for products to embed scripting capabilities (letting users customize behavior with JavaScript) without relying on heavyweight browser technology. For founders and investors, this represents infrastructure for a new wave of extensible applications — from developer tools to game engines — where JavaScript flexibility meets the performance and safety benefits of Rust.

42Hot

Gaining traction — heating up

Stars
7.1k
Forks
611
Contributors
262
Language
Rust

Score updated Mar 5, 2026

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