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SHA-256 Hash Generator

Generate a secure SHA-256 hash from any text, in hex and Base64.

To generate a SHA-256 hash, paste text above and the 256-bit digest appears in both hexadecimal and Base64. SHA-256 is part of the SHA-2 family and remains the standard recommendation for integrity checking, digital signatures and blockchain work.

Runs in your browser
Digest size
256 bits
Inputs
Text or any file, hashed locally
Verification
Compare against a published checksum
Security
Considered secure for integrity use
Privacy
Runs entirely in your browser — nothing is uploaded
Cost
Free, unlimited, no sign-up

Frequently asked questions

Is SHA-256 good for storing passwords?

No. It is deliberately fast, so an attacker can try billions of guesses per second. Use a slow, salted algorithm designed for passwords such as bcrypt, scrypt or Argon2.

How do I verify a downloaded file?

Switch the input to "A file", select your download, and paste the checksum published by the source into the verify box. A match means the content is byte-identical to what they hashed; a mismatch means you should not run it.

Is my file uploaded to check it?

No. Files are read from disk and hashed in your browser, in chunks, so even very large files never leave your device.

How to use the sha-256 hash generator

  1. 1Choose the hash.
  2. 2Enter or paste your text to hash.
  3. 3Select your file — the file stays on your device and is never uploaded.
  4. 4Enter or paste your verify against (optional).
  5. 5Turn "Uppercase hex" on or off as needed.
  6. 6Press Run, then download the result when it is ready.

Embed this tool

Put the working sha-256 hash generator on your own site. It runs in your visitors' browsers exactly as it does here — free, no account, nothing uploaded.

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SHA-512 Hash GeneratorGenerate a 512-bit SHA-512 hash — the widest digest in the SHA-2 family.File Hash & Checksum CalculatorCompute SHA-256, SHA-384, SHA-512 or SHA-1 for any file and verify it against a checksum.MD5 Hash GeneratorGenerate an MD5 hash from any text — instantly and entirely in your browser.SHA-1 Hash GeneratorGenerate a SHA-1 hash from text — 160-bit digest, computed locally.SHA-384 Hash GeneratorGenerate a SHA-384 hash — a truncated SHA-512 used in TLS cipher suites.Bcrypt Hash GeneratorHash a password with bcrypt at a configurable cost factor — the right way to store passwords.

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