Know exactly what you hashed..
Create SHA-256 digests from text or local files with explicit byte and normalization choices.
Hash desk
01 / INPUT TO OUTPUTA clearer view starts here.
Your result will appear here.
Same device. A little less friction.
Less context switching.
More getting it done.
One focused workbench. Six useful tools.
Your data stays in session memory until you clear it.
Bring your input
Paste test data or open a local UTF-8 file.
Make it make sense
Choose the rules. Run the tool. Inspect the result.
Take your work with you
Copy or download only when you’re ready.
At this desk: Hash desk
Text defaults to UTF-8 with no normalization and preserved line endings. Optionally choose Unicode NFC and normalize CRLF/CR to LF. Files always use exact original bytes.
Web Crypto requires HTTPS or localhost and a supporting browser. Hashing is not encryption and does not certify that a file is safe.
Text limit 5 MiB; file limit 20 MiB. Web Crypto reads the entire input in memory; this is not streaming hashing. Cancel discards the worker and prevents late results.
Clear session removes application references, not downloaded files or browser/OS memory. Ordinary application asset requests still reach the host. There is no analytics, content persistence, or processing service.