Hash generator
Generate SHA-256 digests for text using your browser's built-in cryptography, plus MD5 via a simple implementation where available. MD5 and SHA-1 are legacy checksums, not secure hashing.
Anything you type or paste stays in your browser — it is not uploaded to Tools99.
Workspace: 1. Add files2. Ready3. Working4. Done — download
How this workspace works
- Type the text to hash.
- Generate its SHA-256 digest (and MD5 where available).
- Compare the digest against the one you were given to check a file or string matches.
Your text never left this browser, so there is no server copy to delete. Copy it again, start over, or continue with a related tool below.
How to use Hash generator
- Type the text to hash.
- Generate its SHA-256 digest (and MD5 where available).
- Compare the digest against the one you were given to check a file or string matches.
A good use for this
Checking that a download, a password, or a string has not been altered, by comparing digests.
Limits
MD5 and SHA-1 are legacy checksums, not secure hashing — they must not be used for passwords or security decisions. A matching digest proves the text matches, not that the text itself is trustworthy.