Executables – Bundler

Bun's bundler implements a --compile flag for generating a standalone binary from a TypeScript or JavaScript file.

bash

cli.ts

bun build ./cli.ts --compile --outfile mycli

cli.ts
console.log("Hello world!");

This bundles cli.ts into an executable that can be executed directly:

$ ./mycli
Hello world!

All imported files and packages are bundled into the executable, along with a copy of the Bun runtime. All built-in Bun and Node.js APIs are supported.

Note — Currently, the --compile flag can only accept a single entrypoint at a time and does not support the following flags:

--outdir — use outfile instead.
--external
--splitting
--publicPath