TCP UDP debugger

TCP/UDP socket tester with hex support, auto-send, and quick send

TCP UDP Debugger is the ultimate high-performance networking tool designed for developers, embedded engineers, and IT professionals. Whether you are debugging ESP32/Arduino firmware, testing server-side APIs, or monitoring network traffic, this app provides a comprehensive suite of tools to manage socket communications with ease.

Key Features

Versatile Socket Modes

Full support for TCP Server, TCP Client, and UDP protocols. Easily establish connections and test bidirectional data flow.

Flexible Data Formats

Send and receive messages in UTF-8 string or Hexadecimal format. Perfect for testing both text-based protocols and binary-level hardware communication.

Customizable quick send button

Save time with quick send button. Pre-define your most used HEX or UTF-8 commands and send them with a single tap.

Automation and Stress Testing

Use the Auto-send feature to transmit packets at specific time intervals—ideal for heartbeat testing and stability monitoring.

Linefeed Management

Full compatibility with various systems using selectable linefeed options, including CRLF (\r\n), LF (\n), and CR (\r)

Advanced Logging and Export

Keep track of every packet. Export your logs to CSV for professional reporting or deeper analysis in external tools.

Smart Search

Quickly find specific packets or errors within your logged data using the integrated search function.

Built-in PING Tool

Diagnose network connectivity instantly without leaving the app. Check host availability and latency on the fly.

Who is this for?

IoT Developers: Debugging WiFi/Ethernet modules like ESP32, STM32, or Raspberry Pi.

Backend Engineers: Testing TCP/UDP server responses and socket stability.

Network Administrators: Verifying port availability and packet delivery.

Students and Hobbyists: Learning the fundamentals of network protocols and socket programming.

Download TCP UDP Debugger today and turn your Android device into a professional-grade network analysis workstation!