Practical Web Tool

Browser Hardware Terminal

Connect microcontrollers (Arduino, ESP32), USB serial adapters, BLE and HID controllers directly from Chrome. Read live telemetry, send commands and export logs without installing desktop software.

100% local in your browser (Zero-Cloud)

Text and HEX modes with macros

Read the detailed tutorial

Not connectedVirtual microcontroller with temperature, humidity and RPM telemetry (works in all browsers).

Text Monitor0 entries

The terminal is ready. Connect a physical device or click "Start Demo" for an interactive ESP32 telemetry simulation.

Macros:

Local processing: Data from physical devices stays in your browser memory and is never sent to the tutorijali.app server.

Permission dialog: Your browser requires your explicit permission before accessing any serial, USB or Bluetooth port.

How do I connect a device?

Plug in your device

Connect your Arduino, ESP32 or USB-UART adapter (CH340, CP2102, FTDI) to a USB port on your computer. Check that your operating system recognizes the COM/TTY port.

Set the baud rate

The standard ESP32 baud rate is 115200 bps, while a classic Arduino Uno often uses 9600 bps or 115200 bps. Click "Settings" to change it.

Allow access in Chrome

Click "Connect SERIAL". Your browser will open its system dialog. Select your device port and allow access.

Away from your computer? Start Demo

Select the "Demo Simulator" tab and click "Start Demo". You can try all terminal features, send commands and watch the chart on your phone too!