SerialTool - Advanced Serial Port Utility, Monitor, and Sniffer

SerialTool is a powerful and versatile software designed for serial communication across Windows, macOS, and Linux. It functions as a Serial Port Utility, Serial Port Monitor, and Serial Port Sniffer, making it an essential tool for both hobbyists and professionals.

SerialTool supports multiple COM ports simultaneously, enabling concurrent monitoring, communication, and control. It features hexadecimal and ASCII viewers, read/write consoles, and traffic logging with timestamp precision. With built-in support for Modbus RTU and Modbus ASCII, it includes a Modbus client for quick protocol testing.

Advanced users benefit from a built-in Python scripting engine for automation, serial-to-network bridging, timed packet sending, and automatic response triggers based on incoming data.

SerialTool also includes Virtual COM Port emulation, allowing you to create, link, and manage virtual port pairs for simulation and loopback testing.

For deeper insight, SerialTool offers a serial sniffer kernel driver (on Windows) that captures low-level I/O control (IOCTL) signals and raw serial data, even from ports opened by other applications. It features a live session log, byte visualizer, structured packet list, IO controls, and a SerialScope for graphical waveform analysis.

Data can be exported in binary, hex, ASCII, and directly to .pcap files for Wireshark analysis. A variety of UI themes and dockable windows provide a fully customizable user experience.

Whether you're developing firmware, debugging hardware interfaces, or reverse-engineering devices, SerialTool delivers the reliability, flexibility, and depth you need in a professional-grade serial communication suite.

Download the latest versions for Windows, macOS, and Linux at www.serialtool.com.

Features

• Cross-Platform Compatibility: Fully compatible with Windows (from Windows 7), macOS (from Mojave onward), and Linux, ensuring a seamless experience across platforms.

• Advanced Byte and Bit Visualization: Includes ByteVisualizer, which provides detailed byte-to-bit visualization and simulates serial port communication protocols, making it ideal for debugging and analysis. Read more: https://serialtool.com/_en/serial-port-byte-bit-visualizer

• Python Scripting Support: Leverage Python scripts to automate serial communication tasks and extend SerialTool's functionality. Read more: https://serialtool.com/_en/serial-port-byte-bit-visualizer

• Effortless COM Port Management: Manage multiple COM ports simultaneously in a single instance of SerialTool, streamlining your workflow and device handling. Read more: https://serialtool.com/_en/serial-port-byte-bit-visualizer

• Virtual COM Port Emulation: (Windows only) Support for virtual COM port emulation (Null-Modem) with integrated tools to create, manage, and link virtual ports for seamless serial communication testing. Read more: [https://serialtool.com/_en/serial-port-byte-bit-visualizer](https://serialtool.com/_en/virtual-com-ports.php)

• Custom Serial Port Configurations: Adjust baud rates, data bits, stop bits, parity settings, and more to meet specific communication requirements.

• Traffic Logging in Multiple Formats: Record serial port traffic in both ASCII and HEX formats, enabling in-depth analysis and troubleshooting. Read more: https://serialtool.com/_en/serial-port-traffic-recording-logging

• Hex File Editor: Easily edit and analyze hexadecimal files, providing a comprehensive solution for working with binary data. Read more: https://serialtool.com/_en/hex-file-editor

• USB Mapper and Viewer: Visualize and map USB devices connected to your system, providing insights into USB topology and communication. Read more: https://serialtool.com/_en/serial-port-usbmap

• Auto Answer Functionality: Automate responses to specific packets for streamlined application testing. Read more: https://serialtool.com/_en/serial-port-auto-answer

• Buffer Management: Utilize multiple buffers for efficient data storage and organized transmission. Read more: https://serialtool.com/_en/serial-port-multiple-buffers

• Scheduled Data Transmission: Schedule precise timing for data sends, ensuring reliable and accurate performance testing. Read more: https://serialtool.com/_en/serial-port-multiple-send

• Packet Alarms: Set alarms to trigger on specific packet reception, with options to continue logging or stop as required. Read more: https://serialtool.com/_en/serial-port-alarm-trigger-on-buffer

• Hexadecimal Traffic View: Visualize incoming and outgoing traffic in HEX format for comprehensive data analysis.

• CRC Support: Access 32 CRC types to maintain data integrity. Read More: https://serialtool.com/_en/serial-port-crc-send

• Flexible Data Views: View serial data in either packet format or continuous flow, depending on your needs.

• Time Format Options: Switch between EPOCH, US, and European time formats to match your preferences.

• Hex and ASCII Data Sending: Send data in HEX or ASCII format with ease.

• Multiple format data export: Ability to export data in various formats: binary, hexadecimal, ASCII, file, and directly to .pcap (for analysis with Wireshark).

• Signal Control: Gain full control over DTR and RTS signals for precise device communication.

• Real-Time Data Monitoring: Analyze and debug serial traffic in real-time with intuitive and responsive tools.

• Modbus Compatibility: Seamlessly interact with Modbus protocols, making SerialTool versatile for industrial applications. Read more: https://serialtool.com/_en/serial-port-modbus-client-rtu-ascii-tcp

• Spy Port Feature (Windows Only): Monitor and intercept serial communication for advanced debugging (requires Windows kernel driver). Read more: https://serialtool.com/_en/serial-com-spy-sniffer-logger.php

• COM Sniffer (Windows Only): Similar to SpyPort, it allows monitoring and sniffing of data transmitted through multiple COM ports opened by other software, including all related IOCTL signals. Read more: https://serialtool.com/_en/serial-com-sniffer.php

• Portable Linux Version: The Linux version is available as a portable application, including all necessary libraries to avoid installation hassles.

• Comprehensive Documentation: Access detailed guides and tutorials to get the most out of SerialTool.

Use Cases

• Ideal for debugging embedded systems like Arduino and Raspberry Pi.
• A perfect tool for serial communication testing in industrial and educational environments.
• Suitable for hobbyists, engineers, and developers working on IoT, robotics, or custom hardware projects.

Some Screenshots

Serial Port Terminal

Quickly understand serial data with clear ASCII or HEX representations.

Serial Port HEX Terminal

Easily analyze and troubleshoot serial data with the intuitive hexadecimal view.

Multiple COM Ports

Manage multiple COM ports simultaneously.

Serial Port Oscilloscope

Visualize your serial data streams for intuitive understanding.

ByteVisualizer

Byte-to-bit visualization and protocol simulation for debugging and analysis.

Trigger Alarms

Set alarms based on specific patterns in received data.

File Transfer to Serial Port

Achieve reliable data transfer with customizable timing and packet sizes.

Modbus Client

Interact with Modbus Servers (RTU, ASCII, TCP) effortlessly.

SpyPort - Data Sniffer and Logger (Windows Only)

Advanced Serial Port Monitoring with Kernel-Level Access on Windows.

COM Sniffer - Serial

COM Sniffer is one of the most powerful and comprehensive modules integrated into SerialTool, designed for professionals who need a high-level solution to monitor, log, and analyze in real time all serial traffic (RS232, RS422, RS485) passing through the COM ports of their Windows system.

Advanced Serial Port Monitoring with Kernel-Level Access on Windows.

Video Tutorials

Browse our tutotials videos: https://serialtool.com/_en/tutorial-serialtool-videos-list.php

License

SerialTool is free to use. Additional features and support plans are available for professional users. For more details, visit www.serialtool.com.