UART analyzer software

Analyze UART serial communication data with real-time decoding of bytes, frames, and timing information.

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About This Tool

This UART analyzer software provides comprehensive analysis of serial communication data. Upload capture files from logic analyzers or oscilloscopes, or directly input raw byte data. The tool automatically detects common baud rates (9600, 115200, etc.), parses data frames with configurable settings (data bits, stop bits, parity), and displays results in multiple views including hex, ASCII, and timing diagrams. It identifies framing errors, parity errors, and provides detailed statistics about the communication session. All processing happens client-side for privacy and speed.

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How to Use

Upload a capture file (CSV, TXT, or BIN formats) containing UART data or paste raw bytes in hex/ASCII format.
Configure analysis settings: select baud rate (or auto-detect), data bits (5-
, stop bits (1,
5,
, and parity (none, even, odd).
Click 'Analyze UART Data' to process the data.
View results in multiple tabs: Hex View shows raw bytes, ASCII View shows decoded characters, Timing Diagram visualizes signal transitions, and Statistics shows frame counts and error detection.
Use the export options to download analyzed data in CSV or JSON format.

Frequently Asked Questions

Find Quick Answers

What file formats does the UART analyzer support?

The analyzer supports CSV files (with time and value columns), plain text files with hex/ASCII data, and binary files. You can also directly paste hex values (e.g., 55 AA 01) or ASCII text into the input field.

How accurate is the baud rate auto-detection?

The tool analyzes timing between transitions to detect common baud rates (300, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400, 460800, 921600) with high accuracy for clean capture data. For best results, ensure your capture has clear signal transitions.

Can I analyze live serial data with this tool?

This is an offline analyzer that processes uploaded files or pasted data. For live analysis, you would need to capture the data first using a logic analyzer or serial sniffer, then upload the capture file here.

What types of errors can the UART analyzer detect?

The tool detects framing errors (missing stop bits), parity errors (when parity is enabled), and break conditions. It also identifies potential synchronization issues when the baud rate is mismatched.

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