Multi-language code runner · Desktop & web

Run JS, TS,
Python, Go, and Rust
in one Monaco window.

Lingua is the playground senior developers reach for when they want to throw a 10-line script at five languages without spinning up a project. Desktop-first, source-available, and plain about what runs where.

• Pyodide vendored — Python runs offline.
• Telemetry off by default.
• Vim mode, command palette, 29 dev utilities.

const sizes = [512, 1024, 4096];
const kib = sizes.map((n) => n >> 10);
console.log(kib);

type Lang = 'ts' | 'py' | 'go';
const active: Lang = 'ts';
console.log(active.toUpperCase());

from pathlib import PurePosixPath
path = PurePosixPath("src/runner/python.py")
print(path.suffix)

package main
import "fmt"
func main() { fmt.Println("hello from your local go toolchain") }

fn main() {
    println!("local rustc, no project required");
}