Calculate SHA3 Hash – SHA3-224, 256, 384, 512 | Free Online Tool
Compute SHA-3 family hashes (SHA3-224, SHA3-256, SHA3-384, SHA3-512) from text in your browser. Client-side only. Keccak-based standard.
What is the SHA3 Hash tool?
This tool computes SHA-3 hashes (SHA3-224, SHA3-256, SHA3-384, SHA3-512) from text. SHA-3 is a modern standard based on Keccak, different from SHA-2. All hashing runs in your browser.
Key features
- All SHA-3 variants — SHA3-224, 256, 384, 512 in one view.
- Client-side — No server uploads.
- UTF-8 input — Any text. One input, four hashes.
- Copy — One-click copy per hash.
How to use
- Open Calculate SHA3 Hash.
- Paste or type your text.
- Copy the hash(es) you need. SHA3-256 is a common default.
When to use SHA-3
Use when a system requires SHA-3 or you prefer a Keccak-based hash. SHA-2 is still more common; both are secure.
Frequently asked questions
What is SHA-3?
SHA-3 is a hash standard (Keccak-based) with variants SHA3-224, SHA3-256, SHA3-384, SHA3-512. It is different from SHA-2.
What input does the tool accept?
Any text. Input is hashed as UTF-8. You can get all four SHA-3 variants.
Is SHA-3 secure?
Yes. SHA-3 is a modern standard and is considered secure.
Is my data sent to a server?
No. Hashing runs in your browser.
When should I use SHA-3?
When a system requires SHA-3 or you prefer a Keccak-based hash. SHA-2 is still more common.
Why does my hash differ from SHA-256?
SHA-3 is a different algorithm from SHA-2. Same input will give different SHA-256 and SHA-3 hashes.
Try the tool
Use Calculate SHA3 Hash. See Hash Generator, SHA-256, or All Hashes.
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