Why does the same text always produce the same hash?

Hash functions are deterministic — the same input always produces the same output. This consistency is what makes them useful for verification.

Can two different inputs produce the same hash?

Theoretically yes (called a collision), but for SHA-256 it is computationally infeasible. MD5 and SHA-1 have known practical collision vulnerabilities.

Is it safe to hash passwords with this tool?

For learning, yes. For production, use bcrypt or Argon2 which add salting and are slow by design — making brute-force attacks impractical.

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Hash Generator

Generate cryptographic hashes from any input text securely in your browser. Your text is never uploaded or sent to a server.

Built & maintained by Shakeel Ahmed · Full-Stack Developer & Privacy Tools Builder

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Hash Generator

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