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Snakie in your browser

You don't have to install anything to use Snakie. app.snakie.org is the whole editor, running right in your web browser — perfect for Chromebooks, school computers, or just trying Snakie in ten seconds.

Open Snakie online

What you can do online

  • ✍️ Write and run MicroPython on a built-in simulated device — no board needed. from machine import Pin, print(...), loops and while True: all work.
  • 🔭 Watch the on-screen instruments (oscilloscope, multimeter, plotter, and more) animate from your running program.
  • 🧩 Open the Board View, drop in parts from the Standard Library, and see your wiring drawn out.
  • 🤖 Build and pose robots in the 3-D Robot View — run a servo program and watch the model move.
  • 📂 Open a real folder on your computer and edit + save files straight to disk.

The simulator is the same MicroPython that runs on a real board, so your code behaves the way it will on hardware — you just don't need the hardware to start.

Connecting to Snakie online

Just open app.snakie.org and click Connect on the Simulated device (offline) — it's ready to run code immediately. Press New file, type a program, and press Run.

Which browser?

The simulator and editor work in any modern browser. Opening a folder and connecting a real board need a Chromium-based browser (Chrome, Edge, or a Chromebook's browser). Safari and Firefox can still use everything else.

Connect a real board over USB

On a Chromium browser you can plug a real MicroPython board (a Raspberry Pi Pico, an ESP32, and friends) into USB and use it just like the simulator — the REPL, Run/Stop, the device file tree, package installs and the instruments all work over the board.

  1. Plug the board in.
  2. In the port dropdown (top of the shell) choose ＋ Connect a USB board and pick your board in the browser's chooser. Boards you've allowed before appear in the list directly next time.
  3. Press Connect. Write code, press Run — it runs on the real board.

Chromebooks in a classroom

School admins can pre-approve Snakie so students get no permission prompt, via the Google Admin console policy SerialAllowUsbDevicesForUrls. Example (Pico + the common bridge chips):

[{ "urls": ["https://app.snakie.org"], "devices": [
  { "vendor_id": 11914 },   // Raspberry Pi (Pico / RP2040)
  { "vendor_id": 12346 },   // Espressif (native-USB ESP32-S2/S3)
  { "vendor_id": 4292  },   // Silicon Labs CP210x bridge
  { "vendor_id": 6790  },   // WCH CH340 bridge
  { "vendor_id": 1027  }    // FTDI bridge
]}]

Where your work is saved

  • Files you Open Folder live on your computer — Snakie reads and writes them directly, so nothing is uploaded anywhere. Your browser remembers the folder between visits (you may click once to grant access again).
  • The simulated device keeps its files in memory only. They reset when you reconnect, or when you press Stop on a running program — exactly like unplugging and re-plugging a board.

Online vs. the desktop app

The web version has almost everything — including talking to a real board (above). A couple of things still need the desktop app:

  • Flashing MicroPython firmware onto a blank board.
  • Installing packages from the network (mip).

For those, install the desktop app — it's free for macOS, Windows and Linux.

Bookmark it

Add app.snakie.org to your bookmarks or home screen so it's always one click away.