Hash Calculator

Calculate MD5, SHA-1, SHA-256, and SHA-512 hashes from text or files

Input Text

Drop a file here or click to browse

Hash a file instead of text

MD5

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SHA-1

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SHA-256

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SHA-512

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What is a Hash Calculator?

A Hash Calculator computes cryptographic hash values from text or files using algorithms like MD5, SHA-1, SHA-256, and SHA-512. Hashes are fixed-length fingerprints that uniquely identify data — even a tiny change in the input produces a completely different hash, making them essential for verifying data integrity and security.

How to Use This Hash Calculator

Type or paste text into the input area, or drop a file onto the upload zone.
Hashes are computed automatically as you type or upload.
View results for MD5, SHA-1, SHA-256, and SHA-512 simultaneously.
Click the copy button next to any hash to copy it to your clipboard.

Common Use Cases

Verifying file integrity after downloads or transfers
Checking if two files or text strings are identical
Computing checksums for software distribution
Validating data against known hash values for security checks
Detecting accidental corruption in backups or archives

Frequently Asked Questions

Which hash algorithm should I use?

For security-sensitive purposes, use SHA-256 or SHA-512. MD5 and SHA-1 are considered cryptographically broken and should only be used for non-security tasks like quick integrity checks or legacy compatibility.

Can I hash large files?

Yes, you can drag and drop any file. The tool uses the Web Crypto API which handles files efficiently. Very large files (hundreds of MB) may take a moment to process depending on your device.

Are my files or text sent to a server?

No, all hashing is performed locally in your browser using the Web Crypto API. Your data never leaves your device.