SHA1 Online Calculator - Free Online Hash Calculators

SHA1 hash calculator

Here you can calculate online SHA1 hashes for your strings. Put your string into form below and press "Calculate SHA1 hash". As a result you will get SHA1 hash of your string. If you need another hash calculators, for example: HAVAL224-4, SHA256, SHA3-384 or SNEFRU256 you can find it into appropriate section.

About SHA-1 hash algorithm

In cryptography, SHA-1 (Secure Hash Algorithm 1) is a cryptographic hash function which takes an input and produces a 160-bit (20-byte) hash value known as a message digest – typically rendered as a hexadecimal number, 40 digits long. It was designed by the United States National Security Agency, and is a U.S. Federal Information Processing Standard.

Since 2005 SHA-1 has not been considered secure against well-funded opponents, and since 2010 many organizations have recommended its replacement by SHA-2 or SHA-3. Microsoft, Google, Apple and Mozilla have all announced that their respective browsers will stop accepting SHA-1 SSL certificates by 2017.

In 2017 CWI Amsterdam and Google announced they had performed a collision attack against SHA-1, publishing two dissimilar PDF files which produced the same SHA-1 hash.

© Wikipedia

Other Online Hash Calculators


Top hashed strings

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About project

You've visit right place if you want to calculate SHA1 hashes. Put string or even text into String to encode field above and press "Calculate SHA1 hash". You will get SHA1 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, SHA224, SHA256, SHA384, SHA512-224, SHA512, RIPEMD128, RIPEMD160, RIPEMD256, RIPEMD320, WHIRLPOOL, SNEFRU, SNEFRU256, GOST, ADLER32, CRC32, CRC32B, FNV132, FNV1A32, FNV164, FNV1A64, JOAAT, etc. So all what you need to calculate any of these hashes is remeber our web site address -