Free SHA-256 Hash Generator
Generate SHA-256 hashes from any text using the Web Crypto API. No data is sent to any server — hashing runs entirely in your browser.
Hash will appear here...
What Is SHA-256?
SHA-256 (Secure Hash Algorithm 256-bit) is a cryptographic hash function that produces a fixed 64-character hexadecimal digest from any input. It is a one-way function — you cannot reverse a hash back to the original text. SHA-256 is used in TLS/SSL certificates, blockchain technology, password storage, and file integrity verification.
This tool uses the browser's native crypto.subtle.digest() API, which is the same implementation used in production security systems.
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