Checksum

What it calculates

Calculates a checksum for detecting accidental byte changes.

Inputs and methods

HEX or ASCII data; selectable CRC16 variants, CRC32 and Adler-32.

Worked example

Select CRC32 and enter ASCII 123456789.

CBF43926

Specification and limits

CRC16 is a family of algorithms; polynomial, initial value and reflection must match your protocol. Checksums are not authentication.