#️⃣ Hash Generator

Generate MD5, SHA-1, SHA-256, and SHA-512 hashes instantly. 100% client-side — nothing sent to any server.

Enter Text to Hash

🔒 Hashing happens in your browser — your input never leaves this page.

Hash Output

Start typing above to see hashes update in real time.

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Frequently Asked Questions

What is a hash and what is it used for?

A hash function takes any input and produces a fixed-length string. Hashes are used for: verifying file integrity (checksums), storing passwords (never store plaintext), digital signatures, and data deduplication.

What is the difference between MD5, SHA-1, SHA-256, and SHA-512?

MD5 (128-bit) and SHA-1 (160-bit) are legacy algorithms — fast but cryptographically broken for security use. SHA-256 and SHA-512 are part of the SHA-2 family and are the current standards. Use SHA-256 or SHA-512 for any security-sensitive application.

Can a hash be reversed (decrypted)?

No — hashes are one-way functions. You cannot reverse a hash to get the original input. However, common inputs (like passwords) can be found via rainbow tables. Always salt passwords before hashing.

Is this tool safe to use with sensitive data?

Yes — hashing happens entirely in your browser using the Web Crypto API. Nothing is ever sent to a server. You can go offline before typing and it will still work.

Why do two slightly different inputs produce completely different hashes?

This is called the avalanche effect — a core property of good hash functions. Even a single character change produces a totally different hash, making it easy to detect any tampering with data.