Free online hash generator. Generate SHA-1, SHA-256 and SHA-512 cryptographic hashes from any text instantly in your browser using the native Crypto API.
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# HASH GENERATORSHA-1 · SHA-256 · SHA-512
Input Text
SHA-1
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SHA-256
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SHA-512
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Frequently Asked Questions
What is a hash?
A hash is a fixed-size string generated from input data. The same input always produces the same hash, but you cannot reverse a hash to get the original input.
Which hash algorithm should I use?
Use SHA-256 or SHA-512 for modern security needs. SHA-1 is considered weak for security but still used for checksums.
Does ByteKit use a server for hashing?
No — hashing uses your browser's native Web Crypto API. Nothing is sent to any server.