Free SHA-256 & SHA-512 Hash Generator

Calculate a SHA-256 or SHA-512 hexadecimal hash from UTF-8 text online. Whitespace is included. Useful for checksums and reproducible test values.

Free · No AI API key required

How to use this tool

Calculate a reproducible checksum for an exact text value. Select SHA-256 or SHA-512 and compare the hexadecimal digest with a result from your own application.

  1. Choose SHA-256 or SHA-512.
  2. Enter the exact text, preserving relevant spaces and line breaks.
  3. Run the tool and copy the hexadecimal hash.

Example to try

Text: hello Algorithm: sha256 Adding a newline changes the hash.

Supported use and limits

Text is encoded as UTF-8 and processed on this server. This tool does not hash uploaded files, encrypt text or implement password storage.

Can I recover the original text from a hash?

A cryptographic hash is not a reversible encoding. This tool only computes a digest. Use the Base64 decoder for Base64 text, and a dedicated password-hashing implementation for password storage.

Free to use without an account. Submitted input is processed on our server. How Sarvam Tools works.