Checksum / CRC Calculator

Compute CRC8, CRC16, CRC32, XOR, and sum checksums with configurable polynomial for hex or ASCII input.

Live

Input

Input (hex bytes)

Algorithm

Example input:

01 02 03 04 → CRC-32: 0xA3D2A00F

Results

Enter your input values and run the calculation to see results here.

Engineering Notes

Input Format

Enter hex bytes separated by spaces (e.g., "01 02 03 04") or as a continuous hex string (e.g., "01020304"). The parser handles both formats.

XOR Checksum

XOR checksum simply XORs all bytes together. It is simple but only detects single-bit errors. CRC is much more robust for burst error detection.

This tool is intended for engineering analysis and educational purposes. Values and interpretations should be validated against the applicable JEDEC, PCI-SIG, NVM Express, MIPI, vendor datasheet or other authoritative specification.

Frequently Asked Questions

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