SHA256 Hash Generator Online

Generate SHA-1, SHA-256, SHA-384, and SHA-512 hashes from any text. All hashing is done in your browser using the Web Crypto API.

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Frequently Asked Questions

What is a hash function?

A hash function takes an input of any size and produces a fixed-size output (the hash). The same input always produces the same hash, but even a tiny change in input produces a completely different hash. Hash functions are one-way — you cannot reverse a hash to get the original input.

What is the difference between SHA-256 and SHA-512?

SHA-256 produces a 256-bit (64 character hex) hash, while SHA-512 produces a 512-bit (128 character hex) hash. SHA-512 provides more security but is longer. Both are part of the SHA-2 family and are widely used in security applications.

Is SHA-1 still safe to use?

SHA-1 is considered cryptographically broken and should not be used for security purposes. Collisions have been demonstrated. Use SHA-256 or SHA-512 for security-sensitive applications.

What are common uses for hash generators?

Hash generators are used for verifying file integrity, password storage, digital signatures, data deduplication, and checksums. Developers commonly use them to verify downloads and check data integrity.