CRC-16 Checksum

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Input Text

Or: Select a file (supports large files, uses block-by-block reading)

Selecting a file will automatically calculate its CRC (using the current preset parameters).

Default（(Common CRC-16 variants)）

Polynomial (hex)

Init (hex)

XorOut (hex)

Reflection (In / Out)

Hex Output style

Show debug information

CRC (Hex)

CRC (Unsigned Dec)

CRC (Signed Dec)

Notes

📖 Description

CRC-16 is commonly used for serial/embedded protocol verification. This tool supports multiple variants and custom parameters.

Enter any text or data in the "Input Data" box.

Select a variant in the "Presets" section.

Click the "Calculate" button, and the corresponding CRC code will be displayed in the output box.