File Hash Calculator
Calculate cryptographic hash values for any file using MD5, SHA1, SHA256, and other algorithms. Our secure file hash calculator helps verify file integrity, detect changes, and ensure data authenticity without uploading your files to any server.
Click to upload or drop file here
All file types accepted
About File Hash Calculator
File hash is a digital fingerprint of file content, used to verify file integrity and authenticity. Different algorithms provide varying levels of security and performance. All calculations are performed in your browser, files are not uploaded to the server.
Tip: For large files, calculation may take some time, please be patient.
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Usage Tips
- All tools run in your browser, your data will not be uploaded to the server
- You can use shortcuts to improve efficiency
- Dark mode supported, click the top right to switch
Recent Updates
• Added QR code generation tool
• Optimized mobile display
• Added multilingual support
Frequently Asked Questions
Why would I need to calculate a file hash?
File hashes are used to verify file integrity, ensure files haven't been tampered with, check if downloads completed correctly, identify duplicate files, and verify authenticity of software downloads.
Are my files uploaded to your server when calculating hashes?
No, all hash calculations are performed locally in your browser using JavaScript. Your files never leave your computer, ensuring complete privacy and security.
Which hash algorithm should I use for file verification?
For modern security requirements, SHA256 is recommended. However, if you're verifying against a specific hash provided elsewhere (like from a software distributor), use the same algorithm they used.
How long does it take to calculate a hash for large files?
Processing time depends on your file size and your device's processing power. Small files (under 100MB) are usually processed within seconds, while larger files may take longer.
Can I calculate hashes for multiple files at once?
Yes, our tool allows you to calculate hashes for multiple files simultaneously, making it convenient for batch verification or comparison.