Hash Generator
Generate cryptographic hashes using multiple algorithms
Input
Click to upload or drag and drop
Any file type supported
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Select Hash Algorithms
Generated Hashes
About Hash Algorithms
What is a Hash?
A cryptographic hash function is a mathematical algorithm that maps data of arbitrary size to a fixed-size string of bytes. The output (hash value) is unique to each unique input.
Hash Properties
- Deterministic: Same input always produces same output
- Quick Computation: Fast to calculate hash value
- One-way: Impossible to reverse (get input from hash)
- Avalanche Effect: Small input change creates completely different hash
- Collision Resistant: Hard to find two inputs with same hash
Algorithm Comparison
| Algorithm | Output Size | Status |
|---|---|---|
| MD5 | 128 bits | Deprecated |
| SHA-1 | 160 bits | Legacy |
| SHA-256 | 256 bits | Secure |
| SHA-384 | 384 bits | Secure |
| SHA-512 | 512 bits | Secure |
Common Use Cases
- File integrity verification (checksums)
- Password storage (with salting)
- Digital signatures
- Data deduplication
- Cryptocurrency mining
- Message authentication codes (HMAC)
Security Note:
MD5 and SHA-1 are considered cryptographically broken and should not be used for security-critical applications. Use SHA-256 or higher for security purposes.
MD5 and SHA-1 are considered cryptographically broken and should not be used for security-critical applications. Use SHA-256 or higher for security purposes.
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