SHA-256 Hash Generator
Compute SHA-256 cryptographic hashes locally in your browser.
Your input never leaves your device; hashing is done locally using the Web Crypto API.
How to Use
Enter Your Text
Type or paste the text you want to hash into the input area.
View the Hash
The SHA-256 hash is computed instantly as you type. It is displayed as a 64-character hex string.
Copy the Result
Use the copy button to save the hash to your clipboard.
Frequently Asked Questions
What is SHA-256?
SHA-256 (Secure Hash Algorithm 256-bit) is a cryptographic hash function that produces a fixed 256-bit (64-character hex) output. It is part of the SHA-2 family and is widely used in security protocols and applications.
Is SHA-256 secure?
Yes, SHA-256 is considered cryptographically secure and is recommended by NIST for most security applications. It is used in TLS, SSL, PGP, SSH, and blockchain technology.
Can SHA-256 be reversed?
No. SHA-256 is a one-way function. You cannot recover the original input from its hash. This is why it is used for password storage and data integrity verification.
Is my data safe with this tool?
Yes. All hashing happens locally in your browser using the Web Crypto API. Your input is never sent to any server.