Is SHA-256 good for storing passwords?

Not on its own. It's too fast. Use a slow, salted algorithm such as bcrypt or Argon2 for passwords.

Why does one changed character change the whole hash?

That's the avalanche effect — a good hash function makes tiny input changes produce completely different output.

Can I hash a file with this tool?

This tool hashes text. To hash a file, use a file-hash utility on your device, or paste the file's text content.

Is SHA-256 Hash Generator free to use?

Yes — SHA-256 Hash Generator is completely free, with no registration, no usage limits and no watermarks.

Does this tool upload my files to a server?

No. All processing happens entirely in your browser — nothing is uploaded, stored or shared.

SHA-256 Hash Generator

Generate the SHA-256 hash of any text instantly.

SHA-256 is part of the SHA-2 family and is the workhorse of modern integrity checking — used in TLS certificates, software downloads, digital signatures and blockchains.

About SHA-256 Hash Generator

Generate the SHA-256 hash of any string in your browser. SHA-256 produces a 64-character hexadecimal digest and is the standard choice for file integrity checks, digital signatures, and blockchain applications. Your text never leaves your device.

SHA-256 is part of the SHA-2 family and is the workhorse of modern integrity checking — used in TLS certificates, software downloads, digital signatures and blockchains. It outputs 64 hex characters. This SHA-256 generator computes the hash of any text in your browser and shows the other algorithms for comparison.

How to use SHA-256 Hash Generator

Enter the text to hash.
Copy the 64-character SHA-256 value from the results.
Toggle uppercase if your tooling needs it.
Compare it with a published checksum if you have one.

Key features

Fast, accurate SHA-256 with live updates.
Other SHA-2 variants and MD5 displayed alongside.
Unicode-aware input.
Nothing is uploaded or stored.

Common use cases

Confirming that text or a configuration hasn't changed.
Creating deterministic IDs and content fingerprints.
Learning how cryptographic hashing behaves with small input changes.

Frequently asked questions

Related tools

Password Generator

Generate strong, random passwords with custom rules.

Hash Generator

Generate MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes of any text.

Bcrypt Generator & Checker

Generate bcrypt hashes and verify text against an existing bcrypt hash.

AES Encrypt & Decrypt

Encrypt and decrypt text with AES-256 using a passphrase.