SHA3-256 Hash Generator

Summary

Type or paste any text and instantly get its SHA3-256 hash computed entirely in your browser — nothing is sent to a server.

How it works

1. Type or paste the text you want to hash into the input area.
2. The tool feeds your text to the js-sha3 library running locally in your browser.
3. SHA3-256 applies the Keccak sponge construction to produce a 256-bit digest.
4. The 32-byte result is displayed as a 64-character lowercase hex string.
5. An uppercase version is also shown for convenience.
6. Click any copy button to copy the hash to your clipboard.

Use cases

• Verify data integrity by comparing SHA3-256 checksums.
• Generate deterministic identifiers from text strings.
• Hash tokens or secrets locally during development and testing.
• Cross-check SHA3-256 digests published by software download pages.
• Experiment with the SHA-3 standard without installing command-line tools.
• Compare SHA3-256 output against SHA-256 to understand algorithm differences.
• Use as a quick sanity check when implementing SHA3-256 in your own code.

Frequently Asked Questions