files · integrity

CRC32 Checksum

IEEE 802.3 CRC-32 (the one in ZIP, PNG and gzip) of typed text (UTF-8) and/or a file, as 8 hex digits. Known vector: "123456789" → cbf43926.

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How to use CRC32 Checksum

IEEE CRC-32 of text and/or a file as 8 hex digits — "123456789" → cbf43926.

  1. Prepare your input

    Enter text or choose a file.

  2. Use the workspace

    Compute the IEEE CRC-32 checksum.

  3. Check your result

    Check the eight hexadecimal digits against your reference.

Know the limits

CRC32 detects accidental corruption; it is not a cryptographic authenticity check.

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