Hash Generator
Developer ToolsSHA-1 / SHA-256 / SHA-512 hashes
FreePrivateInstant
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History
All history →Hash Generator — at a glance
Create a unique fixed-length fingerprint (hash) of any text using SHA-1, SHA-256 or SHA-512.
hello
Hash
2cf24dba5fb0a30e26e83b2a
c5b9e29e1b161e5c1fa7425e
73043362938b9824
How to use it — step by step
The same text always gives the same hash, but a hash cannot be turned back into the text.
1
Enter text
Type or paste the text you want to hash.
2
View hashes
SHA-1, SHA-256 and SHA-512 are generated.
3
Copy
Copy the one you need.
Pro tips
Small things that make the result better.
✦Prefer SHA-256 or SHA-512. SHA-1 is considered weak.
✦Use hashes to check that a file or text has not changed.
✦Do not store passwords with plain SHA — use bcrypt or Argon2 on your server.
Quick facts
40characters in SHA-1
64characters in SHA-256
128characters in SHA-512
One-waycannot be reversed
Frequently Asked Questions
Can a hash be decrypted?+
No. Hashing is one-way. You can only compare by hashing again.
Which one should I use?+
SHA-256 is the most common secure choice. SHA-512 is longer and also strong.
Why does a tiny change give a totally different hash?+
That is by design — it makes any modification easy to detect.
Is my data safe?+
Yes. Everything runs inside your own browser. Your text, files and images are never uploaded to any server.
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