flashman
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Hash

sha256 • sha512

Note: hashes are not password storage.

About this tool
Compute SHA-256 and SHA-512 hashes from text input. Hashing is one-way: you cannot recover the original message from the digest.
Your input is processed in the browser. We do not upload tool payloads to our servers.
Common use cases
  • Generate checksums for configuration or file contents.
  • Compare hashed values without storing plaintext.
  • Learn how digest algorithms represent data integrity.
Examples
SHA-256 of a word
The hash of flashman is a fixed-length hex string unique to that input.
FAQ
Can I hash passwords here?
For production passwords use dedicated libraries with salt and slow algorithms (bcrypt, Argon2). This tool is for general digests.
Related guide
What SHA-256 and SHA-512 do, when to use them, and what hashing is not.
Read: SHA hashing explained for developers →