String Hash Calculator
Compute SHA-256, SHA-512, SHA-1, and MD5 hashes from text strings instantly. All hashing runs entirely inside your browser (100% private).
Frequently Asked Questions
A cryptographic hash function converts input text of any length into a fixed-size string of characters. Common algorithms like SHA-256 and MD5 produce unique hashes, making them perfect for verifying data integrity.
No, cryptographic hashes are designed as one-way functions. It is mathematically impossible to reverse-engineer the original string from its hash. The only way to find the input is through brute-force guessing.
SHA-256 is a modern, highly secure algorithm with no known collisions, commonly used in blockchain and security. MD5 is an older algorithm that is computationally fast but insecure for cryptographic purposes due to collision vulnerabilities.