🔌 Web Serial Monitor

The ultimate tool for IoT developers. Connect directly to USB serial ports (COM) to debug Arduino and ESP32 right from the browser.

Baud Rate

Disconnected

>_ TERMINAL OUTPUT

Hex Recv Auto Scroll

Waiting for hardware connection...

Send Hex (e.g., FF 0A)

💡 Pro Tip: The Web Serial API requires a Chromium-based browser (Chrome/Edge) and a secure context (HTTPS/localhost). Linux users may need to add themselves to the dialout group to access USB ports.

Rate this tool:

★★★★★

Thanks!

ℹ️ About this tool

Connect to Arduino via USB serial from your browser.

🛡️ Privacy Guarantee: The core processing logic executes entirely locally in your browser. We never log, collect, or upload your private data.

🔌 Web Serial Monitor

ℹ️ About this tool

🔗 Related Tools