Generate cryptographic hashes using MD5, SHA-1, SHA-256, and SHA-512 algorithms. Perfect for data integrity verification and security applications.
✨ Key Features
Multiple Algorithms
Support for MD5, SHA-1, SHA-256, and SHA-512 hash algorithms
Secure Generation
Uses Web Crypto API for cryptographically secure hash generation
Easy Export
Copy individual hashes or export all hashes at once
Input Text
MD5
SHA-1
SHA-256
SHA-512
Hash Algorithm Information
MD5
128-bit hash function. Fast but not cryptographically secure. Good for checksums and non-security applications.
SHA-1
160-bit hash function. Deprecated for security applications but still used for compatibility.
SHA-256
256-bit hash function. Part of SHA-2 family. Widely used for security applications and blockchain.
SHA-512
512-bit hash function. Stronger variant of SHA-2. Recommended for high-security applications.
Common Use Cases
Data Integrity
Verify that data hasn't been corrupted during transmission or storage.
Password Hashing
Store password hashes instead of plain text passwords (use salt!).
Digital Signatures
Create unique fingerprints for documents and digital assets.
Understanding Cryptographic Hashes
What are Hash Functions?
Hash functions are mathematical algorithms that convert input data of any size into a fixed-size string of characters. The output, called a hash or digest, is unique to the input data.
Properties of Good Hash Functions
- • Always verify critical outputs before using them in production
- • Fast computation
- • Avalanche effect (small input change = big output change)
- • Collision resistant
Security Considerations
- • MD5: Vulnerable to collision attacks, avoid for security
- • SHA-1: Deprecated, use only for compatibility
- • SHA-256: Currently secure, recommended for most uses
- • SHA-512: Highest security, use for sensitive data
Always use salt when hashing passwords and consider using specialized password hashing functions like bcrypt or Argon2.