SHA-256 Generator
Generate a SHA-256 hash from text in your browser using Web Crypto. Free SHA-256 checksum tool, nothing uploaded.
Processed locally in your browser.
How to use this sha-256 generator
Paste the text. The 64-character hex digest updates as you type. SHA-256 is computed with crypto.subtle.digest.
Need MD5 or SHA-512 as well? Open the Hash Generator. SHA-256 is the default modern checksum for files and git-like content addressing.
Example
SHA-256("hello") = 2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824.
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Frequently asked questions
What is SHA-256?
A 256-bit cryptographic hash function in the SHA-2 family. Small input changes produce a completely different digest.
Is SHA-256 secure?
It is still approved for most integrity uses. It is not a password hash by itself—add a slow KDF for passwords.
Is hashing local?
Processed locally in your browser. We do not upload the text to compute a result.
Uppercase hex?
Copy and convert case with the Case Converter if a system wants uppercase.
Last reviewed 2026-08-19. Results stay on your device unless you copy them elsewhere.