Hash Generator

A hash generator converts text into a fixed-length digest such as an MD5, SHA-256, or SHA-512 hash. The same text produces the same hash every time, and even a small change to the input creates a different result. This tool hashes the exact text you enter, including spaces, line breaks, Unicode characters, emoji, and case.

MD5 creates a 128-bit hash shown as 32 hexadecimal characters, but it is cryptographically broken. SHA-256 creates a 256-bit hash shown as 64 hexadecimal characters. SHA-512 creates a 512-bit hash shown as 128 hexadecimal characters. SHA-256 and SHA-512 are stronger general-purpose cryptographic hash functions for modern systems.

Hashing is one-way and is not encryption. A hash is designed to verify or identify input, not to preserve data that can later be decrypted. Encryption is reversible with the correct key; hashes normally cannot be reversed, although weak or predictable inputs can be guessed by comparing known hash values.

MD5 should only be used for legacy compatibility, examples, or non-security-sensitive workflows. Do not use MD5 for passwords, signatures, certificates, software authenticity, or security-sensitive integrity checks. Prefer SHA-256 or SHA-512 when a modern general-purpose cryptographic hash is appropriate.

Hashing runs entirely in your browser. SHA-256 and SHA-512 use the browser Web Crypto API, and MD5 uses a local implementation because Web Crypto does not provide MD5. The tool does not send your input or generated hashes to a server, and it does not save them in local storage, cookies, URLs, or analytics events.

Raw MD5, SHA-256, and SHA-512 hashes are not suitable for storing passwords. Production password storage should use a dedicated password hashing function such as Argon2, bcrypt, or scrypt with a unique salt and appropriate work factor.