Web Serial Terminal - Free Online IT Tool

📟 Web Serial Terminal

Connect to microcontrollers (Arduino, ESP32, etc.) directly from your browser to view logs and send commands. Privacy-First: Client-Side

Baud Rate

End of Line

ℹ️ About Web Serial Terminal

The Web Serial Terminal uses the modern Web Serial API to allow direct communication between your browser and hardware devices connected via USB-to-Serial adapters. This eliminates the need for installing local software like PuTTY, Tera Term, or the Arduino IDE just to view logs or send basic commands.

This tool is perfect for:

Debugging: View real-time output from your ESP32, ESP8266, or Arduino.
Provisioning: Send AT commands to Wi-Fi/Bluetooth modules.
Cross-Platform: Works on Windows, Mac, Linux, and Android (Chrome/Edge/Opera) without driver installation (beyond the standard USB-Serial driver).

Note: Requires a Chromium-based browser (Chrome, Edge, Opera) with the Web Serial API enabled.

📖 How to use Web Serial Terminal

1. Select the correct Baud Rate for your device (standard is 115200).
2. Click 'Connect' and select your device from the browser popup.
3. View incoming data in the terminal window.
4. Type commands in the input field and press Enter to send them to the device.

❓ Frequently Asked Questions

Why is my device not showing up?

Ensure your device is plugged in and you are using a data-capable USB cable (some cables are charge-only). Also, verify you are using a supported browser like Chrome or Edge.