Hash Generator

Generate cryptographic hashes (SHA-1, SHA-256, SHA-384, SHA-512) from text or files.

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What are cryptographic hashes?

🔐 One-way function: Cannot be reversed to get original data
✅ Verify integrity: Check if files haven't been modified
🔑 Unique fingerprint: Each input produces a unique hash
📊 SHA-256: Most commonly used for file verification
🔒 SHA-512: More secure but longer hash

Did you know? SHA-256 is used to secure Bitcoin and other cryptocurrencies - every block in the blockchain contains a SHA-256 hash! Even changing a single character in the input completely changes the output hash (called the "avalanche effect"). Git uses SHA-1 hashes to track file changes. The SHA algorithms were designed by the NSA and published in 1993. It would take all the computers on Earth billions of years to crack a single SHA-256 hash!

Frequently Asked Questions

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Hash Generator

What are cryptographic hashes?

Frequently Asked Questions

What is the difference between SHA-1, SHA-256, SHA-384, and SHA-512?

Can I reverse a hash to get the original data?

How do I verify file integrity with hashes?

Which hash algorithm should I use?

Are hashes the same as encryption?

Why do blockchain and Git use hashes?

What is the 'avalanche effect' in hashing?

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