SHA-256 hash generator

Generate a SHA-256 cryptographic hash from any text. Computation is done locally in your browser using the Web Crypto API.

Enter any text and get its SHA-256 hash instantly. Your input stays on your device.

SHA-256 is a one-way cryptographic hash function (256-bit output).

What is a SHA-256 hash?

SHA-256 turns any text into a fixed-length fingerprint (64 hex characters). Even a tiny change in the input produces a completely different output.

This tool uses your browser’s built-in cryptography (Web Crypto API) so no data is uploaded.