SHA-256 Hash Generator
Hash any text with SHA-256 and get the 64-character hex digest. Updates live as you type.
Frequently asked questions
What is SHA-256 used for?
Verifying file integrity, blockchain proof-of-work, TLS certificates, password hashing (with proper salting and stretching), and deduplicating content by fingerprint.
Is SHA-256 secure?
SHA-256 is still considered cryptographically strong: no practical collision attack exists. For password storage specifically, prefer dedicated password hashes like bcrypt, scrypt or argon2 over plain SHA-256.
Why does the same input always give the same hash?
That is the point — SHA-256 is deterministic. Identical input yields identical output everywhere, which is what makes it useful for verification. Change one character and the entire digest changes unpredictably.