Hash Generator
MD5, SHA-1, SHA-256, SHA-512 hashes.
MD5
—SHA-1
—SHA-256
—SHA-512
—About the Hash Generator
Computes MD5, SHA-1, SHA-256, and SHA-512 digests of your input at the same time, so you can compare a checksum without guessing which algorithm produced it. The SHA family is computed with the browser's Web Crypto API. Nothing is uploaded, which matters when you are hashing anything sensitive.
How to use the Hash Generator
- Paste the text you want to hash.
- Read all four digests, which update together.
- Copy the one that matches the checksum you are verifying.
Frequently asked questions
- Are MD5 and SHA-1 safe to use?
- Not for security. Both have practical collision attacks and must not be used for signatures, certificates, or password storage. They remain fine as non-adversarial checksums against accidental corruption.
- Can I reverse a hash back to the original text?
- No. Hashing is one-way by design. Services that appear to reverse hashes are looking the value up in a table of precomputed common inputs.
- Should I use this to hash passwords?
- No. Passwords need a slow, salted algorithm such as bcrypt, scrypt, or Argon2. A fast general-purpose hash like SHA-256 is exactly the wrong tool.
- Why do I get a different hash than another tool?
- Almost always a trailing newline or a different character encoding. The digest covers the exact bytes, so one invisible character changes everything.