Picsova

Hash Generator

Generate cryptographic hashes of any text using the Web Crypto API: SHA-1, SHA-256, SHA-384, and SHA-512. Computed locally for checksums and integrity checks.

Runs entirely in your browser. Nothing is uploaded.

SHA-1No hash yet
SHA-256No hash yet
SHA-384No hash yet
SHA-512No hash yet

SHA-1, SHA-256, SHA-384 & SHA-512

A hash turns any input into a fixed-length fingerprint: the same text always produces the same digest, and the smallest change produces a completely different one. That makes hashes the standard way to verify that a value or a file has not been altered. This generator uses your browser's built-in Web Crypto implementation, so the digests are computed by the same audited code your browser uses for HTTPS, and your input never leaves the page.

How to generate a hash

  1. 1

    Enter your text

    Type or paste the string you want to fingerprint.

  2. 2

    Read every digest

    SHA-1, SHA-256, SHA-384, and SHA-512 are all computed at once.

  3. 3

    Copy the one you need

    Each hash has its own copy button.

Good to know

  • SHA-256 is the sensible default for general integrity checking and is what most systems expect.
  • SHA-1 is included for compatibility with older systems but is considered broken for security purposes — do not use it for anything new.
  • Hashing is one-way: a digest cannot be reversed back into the original text.
  • Plain hashes are not suitable for storing passwords, which need a slow, salted algorithm such as bcrypt or Argon2.

What people use it for

  • Verifying a checksum published alongside a download
  • Generating a stable fingerprint or cache key for a piece of content
  • Confirming two values are identical without comparing them character by character

Frequently asked questions

Which algorithms are supported?+

SHA-1, SHA-256, SHA-384, and SHA-512, computed with the browser's native Web Crypto API. MD5 isn't supported as it's no longer considered secure.

Is my data sent to a server?+

No. Hashing happens entirely in your browser using built-in web APIs. Nothing is uploaded, stored, or logged.

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