SHA-256 Hash Generator
Calculate 256-bit cryptographic SHA-256 checksum digests.
Runs entirely in your browser — your data is never uploaded to any server.
How it works
- Enter textAny string
- HashExecutes Web Crypto SHA-256
- Copy hashHexadecimal digest
What this tool does
- Hardware-accelerated Web Crypto API
- 64-hex character output
- 100% private
Frequently Asked Questions
No. SHA-256 is a one-way cryptographic hash function.
Privacy and security
Your input is processed by JavaScript running inside your browser. Nothing you paste is sent over the network, logged, or stored — which is what makes this safe to use with production data. If you want to check this yourself: open your browser’s developer tools, switch to the Network tab, and use the tool — you will see no request carrying your file or input leave the page.