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SHA-256 hash
Create a SHA-256 hash from text. Copy the digest or download a small JSON receipt.
No uploads. Text is processed only in your browser.Receipt schema
Result
Paste text to create a hash.
Portable JSON receipt
The receipt will appear here.How it works
Use the example first, then replace it with your own input. Check the result before you copy or download it.
- 01
Paste the exact text you want to fingerprint.
- 02
Create the SHA-256 digest. Windows and classic Mac line endings are normalized to LF first.
- 03
Copy the 64-character hexadecimal hash. Open the JSON receipt only if you need the byte count and normalization note.
What the tool changes
- UTF-8 text up to 1,000,000 characters
- SHA-256 through the browser's Web Crypto implementation
- CRLF and CR line-ending normalization before hashing
- A portable JSON receipt as an optional secondary output
What to check yourself
- A matching hash supports a content-equivalence check; it does not prove authorship, ownership, or creation time.
- The tool hashes text, not uploaded files.
- Text hashed elsewhere must use the same UTF-8 encoding and line-ending normalization to match.
Technical reference
These are the specifications used for the tool's rules and terminology.