Comm Echo

Comm Echo is a FREE debug tool for Serial Port, TCP/IP and UDP communication. It displays all received data in Text, Hex or Decimal format.

Download Comm Echo


Windows XP, Windows Vista, Windows 7

.Net Framework 2.0


Display all received data in Text, Hex or Decimal format

Support Serial Port, TCP/IP Server, TCP/IP Client and UDP

Enumerate all available serial port on computer

How to Use

  • 1. Download and unzip it.
  • 2. Run CommEcho.exe.
  • 3. Set the Endpoint. Click “Setting” button to open Setting dialog. The Endpoint could be a serial port, TCP/IP server, TCP/IP client or UDP.
  • 4. Click “Start” button to open the Endpoint. It begins to display all received data.
  • 5. Click “Stop” button to close the Endpoint.
commecho   setting


Comm Echo can save the current endpoint setting before it close. It will restore the setting when it runs next time.

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