Checksum Verifier (CRC32, Adler-32)
32-bit CRC and Adler-32 checksums for transfer and file integrity checks.
IEEE 802.3 / RFC 1950
Checksums catch accidental corruption; to protect against deliberate changes, use SHA-256 or HMAC.
Related tools
- MD5 Hash Calculator128-bit legacy digest; unsafe for passwords and signatures, usable only as a checksum.
- SHA-1 Hash Calculator160-bit SHA algorithm, broken for collisions; still found in Git objects and legacy systems.
- SHA-224 Hash CalculatorThe 224-bit variant of SHA-2.
- SHA-256 Hash CalculatorThe 256-bit member of SHA-2; used in TLS certificates, code signing and Bitcoin.
- SHA-384 Hash CalculatorThe 384-bit SHA-2 variant (SHA-512 truncated), common in high-assurance profiles.
- SHA-512 Hash CalculatorThe 512-bit member of SHA-2, fast on 64-bit hardware.
- SHA3-224 Hash Calculator224-bit NIST SHA-3 hash built on the Keccak sponge construction.
- SHA3-256 Hash Calculator256-bit NIST SHA-3 hash built on Keccak.