Hash Generator

A cryptographic hash function takes an input of any size and produces a fixed-length string of characters, known as a hash or digest. Hash functions are a cornerstone of modern computing and security, used for verifying data integrity, storing passwords securely, generating digital signatures, and detecting duplicate files. The key properties of a cryptographic hash are that it is deterministic (same input always produces the same output), irreversible (you cannot recover the original data from the hash), and collision-resistant (it is extremely difficult to find two different inputs that produce the same hash). This free online hash generator supports four widely used algorithms from the SHA (Secure Hash Algorithm) family: SHA-1 (160-bit), SHA-256 (256-bit), SHA-384 (384-bit), and SHA-512 (512-bit). Simply enter your text, select an algorithm, and get the hash instantly. The tool also includes a hash comparison feature that lets you check whether two hash strings are identical, which is useful for verifying file downloads or comparing checksums. All hashing is performed in your browser using the Web Crypto API (SubtleCrypto.digest), which provides native, high-performance implementations of these algorithms. No data leaves your device, making this tool safe for hashing sensitive information like passwords or confidential documents.