Which hash algorithm should I use?

SHA-256 is the most commonly used. SHA-1 is deprecated for security purposes. SHA-384 and SHA-512 provide higher security but produce longer hashes.

Can hashes be reversed?

No. Cryptographic hash functions are one-way functions. You cannot recover the original text from a hash. This is different from encoding (like Base64) which can be reversed.

Yes. This tool uses the Web Crypto API built into your browser, which provides cryptographic-grade implementations. No data is sent to any server.

Why is MD5 not included?

MD5 is cryptographically broken and should not be used for security purposes. The Web Crypto API does not support MD5. We only include secure hash algorithms.

Hash Generator

Generate SHA-1, SHA-256, SHA-384, and SHA-512 hashes from any text. Uses the Web Crypto API for secure hashing.

What Is a Hash Function?

A cryptographic hash function takes an input and produces a fixed-size string of characters. The same input always produces the same hash, but it is computationally infeasible to reverse the process. Hashes are used for password storage, data integrity verification, and digital signatures.

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