SHA-256 Hash Generator
Generate a SHA-256, SHA-384, or SHA-512 cryptographic hash digest of any text or file, instantly inside your browser.
What is SHA-2?
SHA-256, SHA-384, and SHA-512 are cryptographic hash functions from the SHA-2 family that take any input — text or a file — and produce a fixed-length digest: 256, 384, or 512 bits respectively, shown as 64, 96, or 128 hexadecimal characters. Unlike MD5 or SHA-1, the SHA-2 family is still considered cryptographically secure and is widely used for digital signatures, TLS certificates, blockchain, and file integrity verification. The same input always produces the same hash, and even a tiny change to the input produces a completely different result.
This tool hashes typed text or an uploaded file directly using SHA-256, SHA-384, or SHA-512, using the browser's native Web Crypto API entirely on your device.
GuideHow to use it
How the hash is calculated
The input is read as raw bytes — either the UTF-8 bytes of typed text, or the exact bytes of an uploaded file — and passed to the browser's built-in Web Crypto API, which computes the selected digest natively and returns the result as hexadecimal or Base64.
Why it helpsFeatures & benefits
Why this runs entirely in your browser
Files and text hashed here can contain private data, so nothing is uploaded to a server. The digest is computed natively by the browser's Web Crypto API locally in the tab, which means it keeps working offline once the page has loaded.
Common uses
Verifying a downloaded file matches its published checksum, generating a content-addressable identifier for a file, hashing data before storing a fingerprint of it, or working through a computer science exercise on cryptographic hashing.
Frequently asked questions
A few things people usually want to know before trusting the numbers.
SHA-256 is the most common default and is secure for virtually all use cases. SHA-384 and SHA-512 produce longer digests and are used where a larger hash size is required or preferred.
SHA-256 is 256 bits (64 hex characters), SHA-384 is 384 bits (96 hex characters), and SHA-512 is 512 bits (128 hex characters).
Yes. Switch to File mode and upload or drag a file — its exact bytes are hashed, not just its text content.
Not on its own. For passwords, use a purpose-built algorithm like bcrypt, scrypt, or Argon2 with proper salting — SHA-2 alone is fast, which makes brute-forcing unsalted password hashes practical.
No. All hashing happens locally in your browser via the Web Crypto API. Nothing typed, pasted, or uploaded here is sent to a server, stored, or shared.