File Hash Calculator
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Instructions
- Click or drag to upload a file
- Select hash algorithm (MD5/SHA-1/SHA-256/SHA-512)
- Click "Calculate Hash"
- Copy the generated hash value
Supported Algorithms
| Algorithm | Output Length | Description |
|---|---|---|
| MD5 | 128 bits (32 chars) | Fast, but not recommended for security |
| SHA-1 | 160 bits (40 chars) | No longer recommended for security |
| SHA-256 | 256 bits (64 chars) | Recommended, high security |
| SHA-512 | 512 bits (128 chars) | Highest security |
Common Uses
- Verify downloaded file integrity
- Detect file tampering
- Generate unique file identifiers
- Password storage (with salt)
Privacy
- SHA-1/SHA-256/SHA-512 calculated locally in browser
- MD5 requires server-side calculation (Web Crypto API doesn't support MD5)
- Files are not stored