Compute a SHA-256 fingerprint of text or a small file entirely in the browser. Compare checksums, verify downloads, or document integrity without uploading secrets.
SHA-256 hash
Generate a SHA-256 digest locally. Useful for checksums and quick integrity checks.
How to use SHA-256 hash
- Paste text or choose a file to hash.
- Wait for the SHA-256 hex digest to appear.
- Copy the hash to compare with a known good value.
Example: The same input always produces the same SHA-256 output.
Frequently asked questions
- Can I reverse a SHA-256 hash?
- No. SHA-256 is a one-way function, so you cannot recover the original input from the hash by design.
- What is a checksum used for?
- Comparing the hash of a downloaded file against the publisher’s value confirms the file was not corrupted or tampered with.