Hash Generator
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from text or files.
Hash Results
Enter text above to generate hashes.
About Hash Generator
Hash Generator computes cryptographic hash values for text strings or files using MD5, SHA-1, SHA-256, and SHA-512 algorithms. Input text or upload a file and see all four hash outputs simultaneously.
Cryptographic hashes are used for file integrity verification, password storage (with proper salting), digital signatures, checksums, and data deduplication. Computing a hash lets you verify that a file hasn't been modified or corrupted.
All hashing happens in your browser using the Web Crypto API. Text and file contents never leave your device.
Features
- ✓MD5, SHA-1, SHA-256, and SHA-512 hash algorithms
- ✓Text input and file upload modes
- ✓Shows all hash types simultaneously
- ✓One-click copy for each hash
- ✓Uses Web Crypto API — no server
Common Use Cases
- →Verifying file integrity by comparing checksums
- →Generating SHA-256 hashes for API signatures
- →Computing file fingerprints for deduplication
- →Learning about cryptographic hash functions
Frequently Asked Questions
Should I use MD5 or SHA-256 for security?
Always use SHA-256 or SHA-512 for security-sensitive purposes. MD5 and SHA-1 are cryptographically broken and should only be used for non-security checksums.
Can I reverse a hash to get the original text?
No. Cryptographic hash functions are one-way: you cannot derive the original input from the hash. That's the fundamental security property they rely on.