SHA-256 Hash Generator
Generate secure SHA-256 cryptographic hashes using Web Crypto API.
About This Tool
SHA-256 is a widely used one-way cryptographic hash function that turns any input text into a fixed-length 64-character fingerprint. This tool uses your browser's native Web Crypto API — the same secure engine browsers use for HTTPS — to compute the hash locally, without sending your text anywhere.
How to Use SHA-256 Hash Generator
- Type or paste the text you want to hash.
- The SHA-256 hash is generated automatically as you type.
- Copy the resulting hash value.
Frequently Asked Questions
Can I reverse a hash back to the original text?
No. SHA-256 is a one-way function by design — it is mathematically infeasible to reconstruct the original input from the hash alone.
What is SHA-256 commonly used for?
Verifying file integrity, storing password fingerprints (with proper salting), and blockchain/cryptocurrency systems, among other uses.