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Hash Generator (SHA-1, SHA-256, SHA-384, SHA-512)

See the SHA-1, SHA-256, SHA-384, and SHA-512 hash of any text update as you type.

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Hash Generator

See the SHA-1, SHA-256, SHA-384, and SHA-512 hash of any text update as you type.

Starts in your browser. Instructions are below.

How to use Hash Generator

  1. 01Type or paste the text you want to hash into the box.
  2. 02All four hashes, SHA-1, SHA-256, SHA-384, and SHA-512, update automatically as you type.
  3. 03Press Copy next to the digest you need.

About Hash Generator

A hash generator turns any input into a fixed-length fingerprint called a digest. This tool computes four digests at once, SHA-1, SHA-256, SHA-384, and SHA-512, so you can compare formats without switching tools.

The same input always produces the same digest, and changing a single character produces a completely different one. There is no way to work backwards from a digest to the original text, which is why hashes are used to check that a file or message has not changed.

Use this to verify a download against a published checksum, for example pasting a file's contents and comparing the SHA-256 output to the one the publisher listed. Do not use a plain hash to store passwords; that needs a slow, salted algorithm such as bcrypt or Argon2.

Frequently asked questions

Can a hash be reversed back to the original text?
No. Hashes are one-way. Short or common inputs can sometimes be found by brute force, which is why passwords need salting.
Which hash algorithm should I use?
SHA-256 is the common default for checksums and integrity checks. SHA-384 and SHA-512 give longer digests for extra margin.
Is my text sent to a server?
No. Hashing runs locally using the Web Crypto API.
Why isn't MD5 included?
MD5 has known collision weaknesses and is not considered safe for integrity or security checks. SHA-256 or better is the right default.

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