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CRC32/CRC16

Calculate CRC32 and CRC16 checksums.

How to UseExamplesRelated Tools

How to Use CRC32/CRC16

  1. Enter text in the Text tab; it is converted to UTF-8 bytes.
  2. Read the CRC-32 and CRC-16 values calculated together.
  3. Use the Binary tab when you want to inspect the input byte representation.
  4. Copy either uppercase hexadecimal checksum independently.

The page runs the crc package’s CRC-32 and CRC-16 variants over identical UTF-8 bytes, making their different widths easy to compare.

Examples

Two checksums for one input:

Hello

Output:

CRC32: F7D18982 CRC16: F353

Standard check string:

123456789

Output:

CRC32: CBF43926 CRC16: BB3D

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