CRC32 Online Calculator - Free Online Hash Calculators

CRC32 hash calculator

Here you can calculate online CRC32 hashes for your strings. Put your string into form below and press "Calculate CRC32 hash". As a result you will get CRC32 hash of your string. If you need another hash calculators, for example: GOST-CRYPTO, HAVAL128-4, SHA3-384 or TIGER192-3 you can find it into appropriate section.

CRC32 hash for freedom string


Source string


About CRC32 hash algorithms

A cyclic redundancy check (CRC) is an error-detecting code commonly used in digital networks and storage devices to detect accidental changes to raw data. Blocks of data entering these systems get a short check value attached, based on the remainder of a polynomial division of their contents. On retrieval, the calculation is repeated and, in the event the check values do not match, corrective action can be taken against data corruption. CRCs can be used for error correction (see bitfilters).

CRCs are so called because the check (data verification) value is a redundancy (it expands the message without adding information) and the algorithm is based on cyclic codes. CRCs are popular because they are simple to implement in binary hardware, easy to analyze mathematically, and particularly good at detecting common errors caused by noise in transmission channels. Because the check value has a fixed length, the function that generates it is occasionally used as a hash function.

The CRC was invented by W. Wesley Peterson in 1961; the 32-bit CRC function of Ethernet and many other standards is the work of several researchers and was published in 1975.

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Top hashed strings

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About project

You've visit right place if you want to calculate CRC32 hashes. Put string or even text into String to encode field above and press "Calculate CRC32 hash". You will get CRC32 hash of your string in seconds. You can also copy this hash right to your clipboard using the appropriate button.

Keep in mind that our website has a lot of other calculators, like MD2, MD4, MD5, SHA1, SHA224, SHA256, SHA384, SHA512-224, SHA512, RIPEMD128, RIPEMD160, RIPEMD256, RIPEMD320, WHIRLPOOL, SNEFRU, SNEFRU256, GOST, ADLER32, CRC32B, FNV132, FNV1A32, FNV164, FNV1A64, JOAAT, etc. So all what you need to calculate any of these hashes is remeber our web site address -