SHA256 Hash
Calculate the SHA-256 hash of any text or file, entirely inside your browser tab using the native Web Crypto API.
🔒 Files are processed locally in your browser whenever possible — nothing is uploaded to our servers.
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About this tool
Calculates the SHA-256 hash of text you type or paste, or of a file you upload, using the browser's native Web Crypto API.
How to use it
- Choose Text or File input.
- Type/paste text, or upload a file.
- Click Calculate SHA-256, then copy the result.
FAQ
Is SHA-256 secure?
Yes — SHA-256 is part of the SHA-2 family and is currently considered secure for integrity checks, digital signatures, and most cryptographic uses.
Where is SHA-256 commonly used?
Software release checksums, TLS certificates, blockchain systems, and password-hashing pipelines (typically combined with salting and a slow key-derivation function, not used alone).
How long is a SHA-256 hash?
256 bits, shown here as 64 hexadecimal characters.
Is my text or file uploaded anywhere?
No — the SHA-256 hash is calculated locally in your browser using the browser's own cryptographic API.
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