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Free desktop app · Ziwiz Technologies

Ziwiz Link

Program real Arduino boards from any browser.

Ziwiz Link connects Ziwiz block-coding websites to real hardware on the student’s own computer: it compiles, uploads over USB and runs a live serial monitor.

Download Ziwiz LinkFree · Windows, macOS, Linux

Version 0.1.1 · Released
Windows 10 and 11 · macOS (Apple silicon and Intel) · Linux 64-bit

Other platforms and install help

How it works

Three steps to a running board

  1. Install Ziwiz Link

    Download it below and install it once. It runs quietly in the background.

  2. Open your Ziwiz coding website

    The website finds Ziwiz Link on your computer automatically.

  3. Plug in your board and click Upload

    Choose the board in Board Setup, click Upload, and watch the serial monitor.

Ziwiz coding websitein your browser
same computer
Ziwiz Linkon your computer
USB cable
Arduino boardUno, Nano or Mega
The website talks to Ziwiz Link on your own computer, and Ziwiz Link talks to the board over USB.

Features

What Ziwiz Link does

  • Compiles on your computer

    Block or code programs for Arduino boards compile on the student’s own computer, with no waiting on an online server.

  • Uploads over USB

    Sends the compiled program straight to the board over a USB cable.

  • Live serial monitor

    See what the board prints as it happens, and send it text.

  • Works in any modern browser

    The website talks to Ziwiz Link on the same computer, so Web Serial isn’t needed.

  • Connects automatically

    Open your Ziwiz coding website and it finds Ziwiz Link by itself.

  • Updates itself

    New versions install automatically in the background.

For schools and labs

Built for shared computers

Set it up once per PC and every student who signs in is ready to go.

  • Installs once for all users of a PC, and starts automatically when anyone signs in.
  • Downloads the Arduino board tools once per computer (about 330 MB) on first start, not once per student account. Failed downloads retry on their own.
  • Supports offline lab installs: the board tools can be bundled in advance.
  • Many browser tabs can watch the same board. The serial monitor pauses itself during an upload and resumes afterwards.
  • Recovers when a board is unplugged and plugged back in.

Compatibility

Supported boards and computers

Boards in this release

  • Arduino Uno
  • Arduino Nano, including older clones with the old bootloader (detected and retried automatically)
  • Arduino Mega 2560
  • Coming soonESP32

Computers

  • Windows 10 and 11 (64-bit)
  • macOS on Apple silicon (M1 and later) and Intel
  • Linux 64-bit (.AppImage and .deb)

Security and privacy

Stays on the student’s computer

  • Runs only on the student’s own computer (127.0.0.1). It opens no ports to the network.
  • Only approved Ziwiz websites can use it.
  • Programs are checked before compiling, and each build runs in its own temporary folder.

Downloads

Download Ziwiz Link

Version 0.1.1, released 3 November 2026. Free for every platform.

All releases and release notes

Install help

Windows

  1. Run the installer you downloaded.
  2. After install, Ziwiz Link starts in the system tray (near the clock).

macOS

  1. Open the .dmg and drag Ziwiz Link to Applications.
  2. Open Ziwiz Link. It appears in the menu bar.

Not sure which Mac you have? Open the Apple menu → About This Mac. “Chip: Apple M…” means Apple silicon; “Processor: Intel” means Intel.

Linux

  1. AppImage: make it executable, then run it:
    chmod +x Ziwiz-Link-*.AppImage
  2. Debian/Ubuntu: install the package:
    sudo apt install ./Ziwiz-Link-*.deb

Then

  1. Open your Ziwiz block-coding website.
  2. Plug in your board, choose it in Board Setup and click Upload.
  3. The first start downloads the board tools once (about 330 MB).

Powered by Ziwiz Link

One helper for every Ziwiz coding website

Ziwiz Link works with every Ziwiz-powered block-coding website. Install it once and it works with all of them.

FAQ

Questions and answers

Is Ziwiz Link free?

Yes. Ziwiz Link is free.

Do I need it?

It’s the recommended way to use real boards with Ziwiz coding websites. Without it, Chrome and Edge can still upload over Web Serial, but other browsers can’t reach USB boards.

Does it need the internet?

Only for the first board-tools download (about 330 MB) and for updates. For labs without internet, the board tools can be bundled in advance.

Which boards does it support?

Arduino Uno, Arduino Nano (including older clones with the old bootloader) and Arduino Mega 2560. ESP32 support is coming soon. See supported boards and computers.

How do updates work?

Automatically, in the background. You don’t need to download new versions yourself.

Where do I get help?

Contact the Ziwiz team and we’ll help you get set up.