SHA3 Hash Generator
Generate SHA3-224, SHA3-256, SHA3-384, and SHA3-512 hashes with HMAC and flexible encoding options.
Auto Update
Remember Input
Enable HMAC
How to Use
- 1
Enter your text
Type or paste the text you want to hash into the input field.
- 2
Select input encoding
Choose how the input should be interpreted (UTF-8 by default).
- 3
Configure output format
Select lowercase hex, uppercase hex, or Base64 output.
- 4
Optional: Enable HMAC
Toggle HMAC and enter a secret key for keyed hashing.
- 5
Generate and copy
Click Hash or enable Auto Update, then copy the result as needed.
SHA-3 (Secure Hash Algorithm 3) is the latest member of the Secure Hash Algorithm family, standardized by NIST in 2015. Unlike SHA-2, it is based on the Keccak algorithm and provides an alternative if SHA-2 is ever compromised.
- •Blockchain protocols (e.g., Keccak-256 in Ethereum)
- •High-security hashing for sensitive data
- •Digital signatures and certificates
- •Future-proofing cryptographic systems
Tip: Choose a stronger variant (e.g., SHA3-384 or SHA3-512) for applications that require higher collision resistance.