SHA-256 Hash Generator

Compute SHA-256 checksums instantly in your browser. Nothing is uploaded — all hashing uses the Web Crypto API locally.

No data leaves your browser
SHA-256
Input

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What is SHA-256?

SHA-256 (Secure Hash Algorithm 256-bit) is a cryptographic hash function that produces a fixed 256-bit (32-byte) output, displayed as a 64-character hex string. It is part of the SHA-2 family and widely used for data integrity checks, digital signatures, and password storage.

Is this SHA-256 generator free?

Yes, completely free. No signup or account required.

Is my data safe?

All hashing is computed entirely in your browser using the Web Crypto API. No data is uploaded to any server.

Can SHA-256 be reversed?

No. SHA-256 is a one-way hash function. It is computationally infeasible to reverse the hash back to the original input.