Beejs is an open-source JavaScript/TypeScript runtime built with Rust and V8. Its public v0.1 scope covers the CLI, script execution, TypeScript transpilation, and core compatibility work.

Can Beejs replace Node.js, Bun, or Deno?

Not as a complete production replacement today. Beejs is better suited to runtime experiments, script workflows, learning the internals, and contributing to compatibility work.

Can Beejs run TypeScript directly?

Yes. The CLI reads .ts and .tsx files, routes them through the project's TypeScript module, and then executes the transpiled JavaScript in V8.

Is Beejs open source?

Yes. Beejs uses the MIT License, with source code, issue tracking, and release history available on GitHub.

OPEN SOURCE / RUST + V8 / v0.1.0

Beejs

JavaScript, executed by V8 under Rust control.

Beejs is an evolving JavaScript/TypeScript runtime. Public v0.1 focuses on a predictable CLI, script execution, TypeScript transpilation, and a tested core compatibility surface.

Visit Beejs View on GitHub

Engine: V8
Host: Rust
Version: 0.1.0
License: MIT

bee run hello.ts

hello.tsTypeScript

1const runtime: string = "Beejs"23console.log("Hello from", runtime)

Execution trace

01Readhello.ts

02TranspileTS → JS

03ExecuteV8 isolate

›Hello from Beejsexit 0

PUBLIC RELEASE BOUNDARY

A focused runtime core before a bigger promise.

Beejs is useful for exploring runtime internals, executing scripts, trying TypeScript workflows, and contributing to compatibility work. It is not yet a complete production replacement for Node.js, Bun, or Deno.

v0.1 release contractCore path works

Verified in this release

Default Rust + V8 execution path
JavaScript files and snippet evaluation
TypeScript / TSX transpilation before execution
REPL and Jest-style test commands

CURRENT RUNTIME SURFACE

One CLI for practical script workflows.

Every capability below follows the default Cargo build, current CLI, and executable tests.

V8 execution core

Rust owns the V8 isolate, context lifecycle, and JavaScript execution result.

$bee run app.js

TypeScript path

The CLI reads .ts and .tsx files, transpiles them, then passes JavaScript to V8.

$bee run app.ts

Developer CLI

Run, eval, repl, test, bundle, serve, and lightweight package commands share one interface.

$bee eval "1 + 1"

Compatibility layers

Selected Node.js modules and Web APIs expand behind executable compatibility tests.

$bee test

EXECUTION PATH

A readable path from source file to result.

These four stages describe one real execution in order, not a decorative feature list.

Input

JavaScript, TypeScript, or TSX source

Prepare

TypeScript source is transpiled first

Execute

The Rust-managed V8 runtime runs the code

Return

The CLI prints the result or a clear error

TRY THE CORE

Build from source or use a published release.

Beejs is MIT licensed. Release automation targets macOS Intel, Apple Silicon, and Linux x86_64; other platforms can build from source.

bee://installzsh

$git clone https://github.com/zh30/beejs.git

$cd beejs && cargo build --release

$./target/release/bee eval "1 + 1"

›2

FAQ

Know the boundaries before evaluating Beejs.

related workflows

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official links

Official links

Use these canonical links for citations, installation, source review, privacy checks, and support.

Website Beejs websiteRuntime manual, release notes, and installation entry point.GitHubSource code, issues, contribution history, and implementation details.GitHub ReleasesAvailable prebuilt archives and version history.

bee://next

Run it. Read the source. Help shape the runtime.

Beejs v0.1 is an honest core release with a clear scope, open implementation, and room for runtime contributors.

Enter Beejs Browse source