SHA-256 Hash Generator
Generate the SHA-256 hash of any text instantly using the Web Crypto API. Free online SHA-256 hash generator.
Free SHA-256 Hash Generator
Generate the SHA-256 hash of any text instantly using your browser's built-in Web Crypto API. SHA-256 produces a fixed 256-bit (64 hex character) digest and is widely used in modern security applications.
How to Use It
Type or paste any text into the input box — the SHA-256 hash is computed live as you type usingcrypto.subtle.digest. Click Copy to grab the resulting hex digest.
Example
Hashing the text hello produces2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824.
Common Use Cases
- Verifying file integrity against a published SHA-256 checksum.
- Generating deterministic identifiers or content-addressed cache keys.
- Learning how cryptographic hash functions behave with different inputs.
FAQs
Is SHA-256 secure for passwords?
SHA-256 is cryptographically strong but, like MD5 and SHA-1, is designed to be fast — which makes plain SHA-256 a poor fit for password storage. Real systems should use a slow, salted algorithm such as bcrypt or Argon2 instead.
Is my text uploaded anywhere?
No — hashing happens entirely client-side using the browser's native Web Crypto API. Nothing you type is sent to a server.
How is SHA-256 different from MD5?
SHA-256 produces a longer, more collision-resistant digest and has no known practical attacks, unlike MD5, which is considered cryptographically broken.