Hash Generator

Generate MD5, SHA-1, SHA-256, SHA-512, and BLAKE2 hashes instantly. Perfect for security and data integrity.

Input Text:

Length: 0 characters

MD5 (128-bit)

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SHA-1 (160-bit)

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SHA-256 (256-bit)

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SHA-512 (512-bit)

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Hash Functions Guide

Hash functions convert input data into a fixed-size string of bytes. The output, called a hash value or digest, is unique to the input. This tool generates hashes for security, data integrity, and authentication.

Hash Types:

🔴 MD5 (Deprecated)

128-bit hash. Produces 32 hex characters. No longer secure for cryptographic use.

🟡 SHA-1 (Deprecated)

160-bit hash. Produces 40 hex characters. Vulnerable to collision attacks.

🟢 SHA-256

256-bit hash. Produces 64 hex characters. Secure and widely used in blockchain.

🟢 SHA-512

512-bit hash. Produces 128 hex characters. Highest security level.

Use Cases:

Data Integrity: Verify files haven't been modified
Password Storage: Hash passwords before storing (always use salt!)
Blockchain: SHA-256 is used in Bitcoin and Ethereum
Digital Signatures: Verify authenticity of documents
Version Control: Git uses SHA-1 for commit IDs

Important Notes:

✓ Same input always produces same hash
✓ Different inputs produce different hashes
✗ Cannot reverse a hash (one-way function)
⚠️ MD5 and SHA-1 should not be used for new projects
⚠️ Always use salting when hashing passwords