"The Language of the Web" is used everywhere - your laptop, phone, TV, and the servers that power the internet. With Espruino you can use it on a low power microcontroller too!

Responsive, Instant Feedback


Espruino is an interpreter. It gives you instant feedback so you can view, debug and modify your program while it is running

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Open Source

Fully Open Source

Hardware (CC-BY-SA), software (MPLv2), and documentation. Add functionality, tweak it, or just browse and see how it works.

Donate » Fork us on GitHub »

KickStarter Crowdfunded


Many of the Espruino Devices were crowdfunded using KickStarter. See the campaigns:

Bangle.js 2 Bangle.js Puck.js Pico Original

Everything on one chip for the lowest power consumption.

Espruino has everything it needs on a single chip. This makes it affordable, reliable, and power efficient - allowing it to run for years on a battery.

See the Espruino boards:
Original Pico WiFi Puck.js Pixl.js MDBT42Q

Espruino Microcontroller

Espruino USB

No software needed. Get started in seconds

Espruino boards use Bluetooth LE or plug in to your computer by USB. No drivers, no special software. Just open a terminal app and start writing code!

See our 'Quick Start' tutorial

Espruino Web IDE makes coding even easier

It installs in seconds and provides a modern Syntax Highlighted editor with code completion and even debugging. It even automatically loads any modules you need from the internet.

Try it online or Install the Chrome App

Espruino Chrome Web IDE

Espruino Graphical Code editor

The Graphical Editor lets you use Espruino even if you can't code!

The optional graphical editor makes it quick and easy to create simple devices, even if you've never programmed before.



Get Started Today!

Buy an Espruino Board, just $24.95 or £20.00

Buy Now

Sponsored by:

ST Microelectronics

Featured in:

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