Hash
Compute a cryptographic digest of any text. Hashing is one-way — it can't be reversed.
Algorithm
Digest (hex)
Compute SHA-1, SHA-256, SHA-384, or SHA-512 cryptographic hashes of any text. Runs entirely in your browser.
Frequently asked questions
- What is SHA-256?
- SHA-256 is a one-way cryptographic hash function that produces a 64-character hex string from any input. It is used in digital signatures, data integrity checks, and password storage.
- Are hashes reversible?
- No. Hashing is a one-way function — you cannot recover the original text from a hash. To verify a value, you hash it again and compare the results.
- What is the difference between SHA-1 and SHA-256?
- SHA-1 produces a 40-character hex output and is considered cryptographically weak. SHA-256 produces a 64-character output and is the current standard for most security applications.