Free SHA-256 Hash Generator
Compute the SHA-256 hash of any text or file, instantly and entirely in your browser.
SHA-256 a file
Hash any file locally — nothing is uploaded, it never leaves your browser.
How to generate a SHA-256 hash
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1
Enter your text
Type or paste the text you want to hash into the input box.
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2
Read the hash
The SHA-256 hash updates automatically, computed locally with your browser's Web Crypto API.
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3
Copy the result
Click "Copy hash" to grab the 64-character hex value for your code, config, or checksum file.
Example use cases
Verifying file integrity
Compare a downloaded file's SHA-256 hash against a published checksum to confirm it wasn't corrupted or tampered with.
Signing & fingerprinting data
Generate a stable digest of a document or payload for use in digital signatures or audit trails.
API request signing
Compute a SHA-256 digest as part of building signed API requests or verifying webhook payloads.
Frequently asked questions
What is SHA-256?
SHA-256 is part of the SHA-2 family and turns any input into a fixed 256-bit (64 hex character) fingerprint. It's widely used for checksums, digital signatures, and blockchain applications.
Is SHA-256 secure?
Yes, SHA-256 is currently considered cryptographically strong and is the standard choice for integrity checks and most security-sensitive hashing needs.
Is my data uploaded anywhere?
No. Hashing happens locally in your browser using the Web Crypto API — nothing you type or upload is sent to a server.
Can I hash a whole file, not just text?
Yes — use the "SHA-256 a file" section further down the page to hash any file directly in your browser.