What is a cryptographic hash?

A cryptographic hash function maps data of arbitrary size to a fixed-size array of bytes. It is a one-way function, meaning it's computationally infeasible to recreate the original input from the hash output.

Yes. This tool uses the native Web Crypto API (`crypto.subtle`) built into your browser to compute hashes securely and efficiently. Your data is never sent to any server.

ASAPUtils

Hash Generator Online — SHA-256, SHA-512

Free browser Hash Generator. Securely generate SHA-1, SHA-256, SHA-384, and SHA-512 hashes instantly. 100% client-side — data never leaves your browser.

Algorithm:

Input Text

SHA-256 Hash Output

Cryptographic Hash Generator

This free online tool allows you to instantly generate secure cryptographic hashes for your text data. It supports standard Secure Hash Algorithms (SHA) including SHA-1, SHA-256, SHA-384, and SHA-512.

Simply enter your text into the input field, select your desired algorithm, and the hash will be instantly generated using your browser’s built-in Web Crypto API. Because all computations happen locally, your data remains completely private.