Generate SHA3-256 hashes
This SHA3-256 hash generator converts text into a 256-bit (64-character) hexadecimal string. SHA3-256 is the most widely adopted function in the newer SHA-3 standard. It serves as a modern drop-in for 256-bit digests. It is completely distinct from the older SHA-256 algorithm, despite sharing the exact same output length. Use this tool when you specifically need a SHA-3 checksum or digest.
Batch processing
Paste a list of strings and toggle Batch by newline to generate a separate SHA3-256 hash for every line. The tool will output a matching list of digests, one per line.
You can also enable Trim lines to strip invisible whitespace from the start and end of each item before hashing. This ensures consistent checksums when extracting strings to SHA3-256 from spreadsheets or log files.
Text encoding
By default, the generator normalizes Unicode to ensure that characters with multiple valid byte representations produce the same digest. If you are trying to match an exact byte-for-byte SHA3-256 online test vector, you can disable Normalize Unicode to hash the raw JavaScript string bytes directly.
Use the Uppercase toggle to output the hexadecimal string in capital letters (e.g., 3338BE... instead of 3338be...).