Quick Overview
- 1#1: Advanced Serial Data Logger - Captures, parses, and logs serial RS232/RS485 data to files, databases, Excel, or via email with advanced plugins.
- 2#2: Serial Port Monitor - Professional serial port sniffer that monitors, logs, and analyzes RS232/USB data traffic with session export.
- 3#3: Device Monitor - Advanced serial protocol analyzer and logger for capturing, decoding, and exporting COM port data.
- 4#4: Docklight Scripting - Scriptable serial communication terminal for automated testing, monitoring, and data logging over RS232/USB.
- 5#5: Data Logger Suite - Multi-source data acquisition suite that logs serial port data alongside TCP, UDP, and file inputs to various outputs.
- 6#6: RealTerm - Feature-rich open-source serial terminal with powerful hex/ASCII logging, timestamps, and plugin support.
- 7#7: YAT - Open-source terminal emulator for serial ports with advanced logging, scripting, and data filtering capabilities.
- 8#8: Serial Studio - Modern cross-platform tool for serial data visualization, plotting, and logging with dashboard support.
- 9#9: CoolTerm - Cross-platform serial terminal that logs data to files with triggers, timestamps, and macro support.
- 10#10: AccessPort - Lightweight Windows serial monitor and logger for capturing and saving RS232 data streams.
Tools were evaluated based on feature depth (capturing, parsing, logging capabilities), usability, performance, and value, ensuring they meet diverse needs across beginners and advanced users with varying requirements.
Comparison Table
Discover a comparison of popular serial data logger software tools, featuring Advanced Serial Data Logger, Serial Port Monitor, Device Monitor, Docklight Scripting, Data Logger Suite, and more. This table helps readers identify key features, usability, and ideal use cases, simplifying the process of selecting the right software for serial data monitoring and logging.
| # | Tool | Category | Overall | Features | Ease of Use | Value |
|---|---|---|---|---|---|---|
| 1 | Advanced Serial Data Logger Captures, parses, and logs serial RS232/RS485 data to files, databases, Excel, or via email with advanced plugins. | specialized | 9.6/10 | 9.8/10 | 8.4/10 | 9.5/10 |
| 2 | Serial Port Monitor Professional serial port sniffer that monitors, logs, and analyzes RS232/USB data traffic with session export. | specialized | 9.2/10 | 9.6/10 | 8.4/10 | 8.9/10 |
| 3 | Device Monitor Advanced serial protocol analyzer and logger for capturing, decoding, and exporting COM port data. | specialized | 8.4/10 | 9.2/10 | 7.6/10 | 8.0/10 |
| 4 | Docklight Scripting Scriptable serial communication terminal for automated testing, monitoring, and data logging over RS232/USB. | specialized | 8.2/10 | 9.1/10 | 6.8/10 | 7.6/10 |
| 5 | Data Logger Suite Multi-source data acquisition suite that logs serial port data alongside TCP, UDP, and file inputs to various outputs. | enterprise | 8.1/10 | 9.2/10 | 7.3/10 | 7.8/10 |
| 6 | RealTerm Feature-rich open-source serial terminal with powerful hex/ASCII logging, timestamps, and plugin support. | specialized | 7.8/10 | 9.1/10 | 6.4/10 | 10/10 |
| 7 | YAT Open-source terminal emulator for serial ports with advanced logging, scripting, and data filtering capabilities. | specialized | 7.9/10 | 8.6/10 | 7.1/10 | 9.7/10 |
| 8 | Serial Studio Modern cross-platform tool for serial data visualization, plotting, and logging with dashboard support. | specialized | 8.7/10 | 9.2/10 | 8.0/10 | 10/10 |
| 9 | CoolTerm Cross-platform serial terminal that logs data to files with triggers, timestamps, and macro support. | other | 8.2/10 | 7.8/10 | 8.7/10 | 9.8/10 |
| 10 | AccessPort Lightweight Windows serial monitor and logger for capturing and saving RS232 data streams. | other | 6.8/10 | 6.5/10 | 8.2/10 | 7.0/10 |
Captures, parses, and logs serial RS232/RS485 data to files, databases, Excel, or via email with advanced plugins.
Professional serial port sniffer that monitors, logs, and analyzes RS232/USB data traffic with session export.
Advanced serial protocol analyzer and logger for capturing, decoding, and exporting COM port data.
Scriptable serial communication terminal for automated testing, monitoring, and data logging over RS232/USB.
Multi-source data acquisition suite that logs serial port data alongside TCP, UDP, and file inputs to various outputs.
Feature-rich open-source serial terminal with powerful hex/ASCII logging, timestamps, and plugin support.
Open-source terminal emulator for serial ports with advanced logging, scripting, and data filtering capabilities.
Modern cross-platform tool for serial data visualization, plotting, and logging with dashboard support.
Cross-platform serial terminal that logs data to files with triggers, timestamps, and macro support.
Lightweight Windows serial monitor and logger for capturing and saving RS232 data streams.
Advanced Serial Data Logger
specializedCaptures, parses, and logs serial RS232/RS485 data to files, databases, Excel, or via email with advanced plugins.
Modular plugin architecture enabling unlimited customization for data parsing, protocol support, and integrations without coding.
Advanced Serial Data Logger from AGG Software is a professional-grade tool for capturing, parsing, and logging data from RS232, RS422, and RS485 serial ports in real-time. It supports multiple ports simultaneously, exports data to files (CSV, Excel), databases (MySQL, SQL Server, Oracle), and offers automation via plugins for filtering, splitting, and TCP/IP bridging. Widely used in industrial automation, SCADA systems, and device testing, it ensures reliable data integrity with features like duplicate removal and scheduling.
Pros
- Robust multi-port support for handling numerous devices concurrently
- Extensive plugin ecosystem for custom parsing and automation
- Seamless integration with databases and export formats
Cons
- Steep learning curve for advanced plugins and configurations
- Windows-only compatibility
- Higher cost for enterprise features
Best For
Industrial engineers and automation professionals requiring reliable, scalable serial data logging for SCADA and device monitoring.
Pricing
Standard edition $65 one-time; Pro $130; Enterprise $295+; 15-day free trial available.
Serial Port Monitor
specializedProfessional serial port sniffer that monitors, logs, and analyzes RS232/USB data traffic with session export.
Advanced built-in protocol interpreter supporting over 25 industrial protocols like Modbus RTU/TCP and custom scripting for decoding.
Serial Port Monitor by electronic.team is a professional-grade tool for capturing, analyzing, and logging serial port (RS232/RS422/RS485) data traffic in real-time. It provides detailed views of data in hex, ASCII, and binary formats, with advanced protocol decoding for Modbus, BACnet, and others. Users can record sessions to files, replay them, and apply filters/scripts for precise debugging of device communications.
Pros
- Extensive protocol decoding and analysis tools
- Robust session logging with export to multiple formats
- Real-time monitoring with filtering and automation scripting
Cons
- Windows-only compatibility
- Learning curve for advanced features
- No perpetual free version beyond trial
Best For
Embedded systems engineers and hardware developers needing in-depth serial protocol debugging and data logging.
Pricing
Free trial; paid editions from $99 (Standard) to $295 (PRO) per license.
Device Monitor
specializedAdvanced serial protocol analyzer and logger for capturing, decoding, and exporting COM port data.
Built-in scripting engine using VBScript/JScript for custom data parsing, automation, and conditional logging
Device Monitor from HHD Software is a comprehensive serial port monitoring and data logging tool that captures, analyzes, and records communication data from RS232/485, USB serial devices, modems, and TCP/IP connections in real-time. It provides detailed protocol decoding, filtering, search tools, and export options to files like CSV or HTML for further analysis. Primarily targeted at developers and engineers, it excels in debugging hardware-software interactions and automating data workflows.
Pros
- Extensive support for serial, USB, and TCP/IP protocols with real-time monitoring
- Powerful filtering, scripting, and data export capabilities
- Customizable plugins for automation and integration
Cons
- Interface feels dated and can overwhelm beginners
- Windows-only compatibility limits cross-platform use
- Advanced features locked behind pricier Professional edition
Best For
Hardware engineers and developers debugging complex serial device communications requiring detailed logging and analysis.
Pricing
Free 30-day trial; Standard edition $99.95 (one-time), Professional $224.95 (one-time) with advanced scripting.
Docklight Scripting
specializedScriptable serial communication terminal for automated testing, monitoring, and data logging over RS232/USB.
ECMAScript-based scripting engine for building reusable, automated test sequences and custom data analysis logic
Docklight Scripting is a professional-grade serial communication tool from docklight.de, specializing in real-time monitoring, logging, and automated analysis of RS232, RS485/422, and virtual COM port data. It extends basic logging with a powerful scripting engine based on ECMAScript, enabling users to create custom test sequences, protocol simulations, and data processing workflows. Primarily targeted at embedded systems developers and QA engineers, it supports advanced features like checksum verification, data filtering, and export to various formats for in-depth analysis.
Pros
- Powerful scripting for automated testing and protocol simulation
- Robust real-time logging with filtering and analysis tools
- Supports multiple serial interfaces and virtual ports seamlessly
Cons
- Steep learning curve for scripting newcomers
- Windows-only compatibility limits cross-platform use
- Higher cost compared to basic loggers
Best For
Embedded developers and test engineers needing automated serial protocol validation and complex data analysis workflows.
Pricing
€299 for a single-user perpetual license (Scripting Edition); 30-day fully functional trial available; volume discounts for teams.
Data Logger Suite
enterpriseMulti-source data acquisition suite that logs serial port data alongside TCP, UDP, and file inputs to various outputs.
Background kernel driver for transparent, high-speed data collection without interrupting device communication
Data Logger Suite from AGG Software is a versatile collection of data logging tools that captures serial (RS232/RS485), TCP/IP, UDP, modem, and file-based data streams in real-time. It features advanced parsing, filtering, scripting, and export options to databases (SQL, Oracle, MySQL), Excel, HTML reports, and more. Designed for industrial and automation environments, it ensures high-performance logging with minimal data loss even under heavy loads.
Pros
- Extensive input support including multiple COM ports and network protocols
- Powerful data parsing, plugins, and automation scripting
- Reliable kernel-based engine for high-volume, low-latency logging
Cons
- Dated user interface with a learning curve for complex setups
- Windows-only compatibility
- Pricing scales up significantly for full suite or enterprise licenses
Best For
Industrial automation professionals requiring robust, customizable serial data logging with database integration.
Pricing
Individual loggers from $65; Data Logger Suite bundles $295-$995; volume discounts and trials available.
RealTerm
specializedFeature-rich open-source serial terminal with powerful hex/ASCII logging, timestamps, and plugin support.
Versatile multi-view data display and logging with graph plotting for real-time visualization of serial streams
RealTerm is a free, open-source serial terminal program primarily for Windows, designed for debugging embedded systems and hardware interfaces via serial ports. It functions effectively as a serial data logger by capturing data in ASCII, hex, binary, or graph formats, with support for timestamps, file rotation, and session-based logging. Advanced features include protocol simulation, scripting, modem controls, and TCP/UDP bridging, making it suitable for detailed serial communication analysis.
Pros
- Extensive logging options including timestamps, file splitting, and multiple display modes (ASCII, hex, binary, graph)
- Free and open-source with no licensing costs
- Powerful serial controls like break sending, DTR/RTS manipulation, and protocol testing tools
Cons
- Outdated, cluttered interface that feels dated and overwhelming
- Windows-only with no official native support for macOS or Linux
- Steep learning curve due to dense configuration options
Best For
Experienced embedded engineers and hardware developers requiring advanced serial data capture and protocol debugging.
Pricing
Completely free (open-source, donations encouraged).
YAT
specializedOpen-source terminal emulator for serial ports with advanced logging, scripting, and data filtering capabilities.
Integrated Lua scripting for automating complex data logging and terminal interactions
YAT (Yet Another Terminal), available on SourceForge, is an open-source Windows application serving as a versatile terminal emulator and serial data logger for RS232, TCP/IP, UDP, and other protocols. It captures, logs, and analyzes serial communications with features like timestamped file exports, data filtering, and multiple view modes (ASCII, HEX, binary). The software supports macros, scripting via Lua, and automation, making it suitable for embedded debugging and device testing. While powerful, its interface reflects older design principles.
Pros
- Robust multi-protocol support including serial, TCP, and UDP
- Advanced logging with timestamps, filters, and export options
- Free open-source with scripting and macro capabilities
Cons
- Windows-only, no native Linux/Mac support
- Dated user interface with a learning curve for advanced features
- Documentation is sparse and community-driven
Best For
Windows-based engineers and hobbyists needing a free, capable serial data logger for device debugging and protocol analysis.
Pricing
Completely free (open-source under GPL license).
Serial Studio
specializedModern cross-platform tool for serial data visualization, plotting, and logging with dashboard support.
YAML-configurable message definitions for parsing and visualizing complex binary serial protocols without custom coding.
Serial Studio is a free, open-source, cross-platform tool designed for real-time visualization, analysis, and logging of serial data from devices like microcontrollers and sensors. It features a drag-and-drop dashboard editor with widgets such as plots, gauges, tables, and buttons for monitoring telemetry. Users can define message structures via YAML for decoding binary protocols, script automations with Lua, and export data to CSV for further analysis.
Pros
- Completely free and open-source with no licensing costs
- Highly customizable dashboards and YAML-based protocol decoding
- Cross-platform support including Windows, Linux, macOS, and embedded devices
Cons
- Steeper learning curve for YAML configuration and Lua scripting
- Interface can feel cluttered for basic serial logging tasks
- Primarily focused on serial protocols with limited native support for other transports
Best For
Hobbyists, makers, and embedded developers needing flexible, real-time serial data visualization and logging for prototyping IoT and sensor projects.
Pricing
Completely free (open-source, no paid tiers).
CoolTerm
otherCross-platform serial terminal that logs data to files with triggers, timestamps, and macro support.
Versatile receive data views including ASCII, HEX, binary, and mixed modes for flexible data inspection
CoolTerm is a free, cross-platform serial port terminal application designed for communicating with hardware devices over RS-232 or USB-serial connections. It excels at capturing, displaying, and logging serial data in formats like ASCII, HEX, binary, or mixed modes, while supporting features like macros for sending predefined data sequences. Primarily used for debugging embedded systems, microcontrollers, and IoT projects, it offers reliable data export to text files with optional timestamps.
Pros
- Completely free with no ads or limitations
- Cross-platform support for Windows, macOS, and Linux
- Straightforward data logging with timestamps and multiple export formats
Cons
- Dated user interface lacking modern polish
- Limited advanced features like scripting or protocol decoding
- No built-in graphing or real-time data visualization
Best For
Hobbyists, students, and embedded developers needing a simple, reliable serial terminal for basic logging and monitoring without complex setup.
Pricing
Free (donationware)
AccessPort
otherLightweight Windows serial monitor and logger for capturing and saving RS232 data streams.
Integrated macro scripting language for automating responses to incoming serial data
AccessPort is a Windows-based serial port monitor and data logger that captures real-time data from RS232, RS422, or USB-to-serial devices, displaying it in ASCII, hex, or binary formats. It supports session logging to text or CSV files with timestamps, allows sending custom data back to devices, and includes basic filtering and macro scripting for automation. Primarily aimed at debugging serial communications in embedded systems, hardware testing, or industrial applications, it offers a no-frills approach to serial data handling.
Pros
- Simple, intuitive interface for quick serial monitoring setup
- Reliable data logging with timestamps and export options
- Supports macros for basic automation and response scripting
Cons
- Lacks advanced features like protocol decoding, graphing, or multi-port aggregation
- Windows-only, with a somewhat dated user interface
- No mobile or cloud integration for remote logging
Best For
Technicians and hobbyists needing straightforward serial port logging for device troubleshooting without advanced analytics.
Pricing
Free demo version available; full license $79.95 one-time purchase.
Conclusion
Evaluating the top tools reveals Advanced Serial Data Logger as the standout for its robust capture, parsing, and logging across diverse formats with advanced plugins, closely followed by Serial Port Monitor's professional traffic monitoring and session exports, and Device Monitor's deep protocol analysis abilities. While the top three excel, there are alternatives for specialized needs, ensuring the right tool exists for most users.
Take the next step with Advanced Serial Data Logger to simplify serial data logging—its flexible features and reliable performance make it a must-try for anyone working with com ports.
Tools Reviewed
All tools were independently evaluated for this comparison
Referenced in the comparison table and product reviews above.