Hash Calculator
Calculate hash values for text instantly. Support for SHA-256, SHA-512, SHA-1, MD5. Free online hash calculator.
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hashTool.verifyHash
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What is Hash Calculator?
Hash functions are essential for data integrity verification, password storage, and digital signatures. Our Hash Calculator supports multiple hash algorithms including MD5, SHA-1, SHA-256, and SHA-512, allowing you to generate hashes for text or files instantly.
The tool runs entirely in your browser with no server-side processing. Your data never leaves your device, ensuring complete privacy and security. No registration required - just open and use.
How to use
- 1 Select hash algorithm: MD5, SHA-1, SHA-256, or SHA-512
- 2 Enter text in the input field or upload a file
- 3 View the generated hash instantly in the output field
- 4 Click "Copy Hash" to copy to clipboard in hex or base64 format
- 5 Use "Compare Hash" to verify against a known checksum
Common use cases
- ✓ Verify downloaded files by comparing checksums
- ✓ Generate secure password hashes for authentication systems
- ✓ Check data integrity after file transfers
View full documentation for more use cases →