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Free Hash Generator – MD5, SHA-1, SHA-256 & SHA-512 Calculator

Instantly produce file checksums, password hashes, and multi-algorithm digests with salt, Base64, and hex output.

🟢 Runs locally · no uploads

Hash Generator

Generate cryptographic hashes with MD5, SHA-256, SHA-512

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File Integrity Verification

Generate MD5/SHA-256 checksums to verify file downloads and integrity

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Password Hashing

Hash passwords with SHA-256 before database storage

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Data Deduplication

Generate hashes to detect and remove duplicate data

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Git Commit Signatures

Create SHA-1 hashes for version control commit verification

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Hello, World!
tag Generated Hashes
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Hashes will appear here
Keyboard Shortcuts: Ctrl+V to paste • Ctrl+Enter to generate

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› About this tool · FAQ

Stop downloading hash calculator software! Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes instantly for file integrity verification, checksums, and data validation. Supports multi-algorithm output, optional salting, hex/Base64 formats, and processes files up to 50MB in your browser. Perfect for developers and security professionals. Free, works offline, unlimited hashing.

How do I generate a hash?

Enter your text or upload a file, select hash algorithms (MD5, SHA-1, SHA-256, SHA-384, SHA-512), choose output format (hex or Base64), and generate. The tool processes data instantly with multiple hash algorithms simultaneously.

Is this hash generator free?

Yes, completely free with unlimited hash generation. No signup required, no watermarks. All hashing happens in your browser for complete privacy of files and data.

Are files uploaded to servers?

No, all hash generation happens locally in your browser using Web Crypto API. Files never leave your computer, ensuring complete privacy for sensitive data and file integrity checks.

Which hash algorithm should I use?

For new applications, use SHA-256 or higher. MD5 and SHA-1 are deprecated for security use but still useful for checksums and non-cryptographic purposes.

Is MD5 secure for passwords?

No, MD5 is cryptographically broken and should never be used for passwords. Use bcrypt, scrypt, or Argon2 for password hashing instead.

What's the difference between hex and Base64 output?

Hex uses 0-9 and A-F characters (longer), while Base64 uses A-Z, a-z, 0-9, +, / (shorter). Both represent the same hash data in different formats.

Can I reverse a hash to get the original data?

No, cryptographic hashes are one-way functions. You cannot reverse them to get the original data, but you can verify if input matches by comparing hashes.

Why do I get different hashes for the same text?

Make sure you're using the same algorithm and text encoding. Different algorithms or character encodings will produce different hashes.