Documentation

Run code in the browser

AutoLabDocs compiles and runs C++, C, Python and JavaScript entirely in the user's browser via WebAssembly — no execution server, no Docker, no per-run cost.

Runs on the host

Every program executes on the visitor's own CPU, inside the browser.

Four languages

JS & Python work asset-free; C/C++ via a clang-in-WASM toolchain.

Real interactive I/O

input(), cin >> and prompt() block for real input — like a terminal.

Zero backend

No execution server to attack, queue, or scale. Infinite scale at $0.

Quickstart#

The entire runtime lives in lib/runtime/ and is driven through one tiny interface. Pick an engine by filename and run:

example

import { getRunnerForFile } from "@/lib/runtime";

const runner = getRunnerForFile("main.py");

await runner.run({
  filename: "main.py",
  code: 'print("Hello from your own browser!")',
  onEvent: (e) => {
    if (e.type === "output") terminal.write(e.data);
    if (e.type === "exit")   console.log("done", e.code);
  },
});

That's the whole surface area: run(), sendInput(), and stop().

Where to next#

Built by Adithya Hegde Kota

The execution engine, the stdin channel, the WASM toolchain wiring — all designed and built by Adithya Hegde Kota.

See the SDK & Promotion License