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Hash Generator

LiveSecurity & Cryptography

Hash Generator is a free, privacy-first cryptographic tool for developers and security professionals. Generate hashes from text input or files using MD5, SHA-1, SHA-256, SHA-384, and SHA-512. Compare two hashes to verify integrity, generate HMAC signatures with a secret key, and see all hash outputs side by side for quick comparison. Uses the Web Crypto API for SHA hashes and a pure JavaScript implementation for MD5. Everything runs client-side — no data leaves your browser.

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# Hash Generator
Fast writing and instant preview for production-ready content.

Key Features

Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes
Real-time hashing as you type
File hashing via drag-and-drop or file picker
HMAC generation with custom secret key (SHA-256, SHA-512)
Hash comparison tool to check if two hashes match
All hash outputs displayed side by side
Uppercase and lowercase output toggle
One-click copy any hash output
100% client-side — no data sent to any server
Dark mode and light mode with responsive layout

FAQs

What does the Hash Generator do?

It takes text or a file and generates cryptographic hash values using MD5, SHA-1, SHA-256, SHA-384, and SHA-512 algorithms. It also supports HMAC generation with a secret key and hash comparison for integrity verification.

Is MD5 still safe to use?

MD5 is no longer considered secure for cryptographic purposes like password hashing or digital signatures due to known collision vulnerabilities. However, it is still widely used for non-security checksums, cache keys, and quick data fingerprinting. For security, use SHA-256 or SHA-512.

Is my data safe when using this tool?

Yes. All hashing happens 100% in your browser using the Web Crypto API (for SHA) and a local JavaScript implementation (for MD5). No text, files, or hash values are ever sent to a server or stored.

What is HMAC and when do I need it?

HMAC (Hash-based Message Authentication Code) combines a hash function with a secret key to produce a signature. It is used for API authentication (like AWS Signature V4, Stripe webhooks), message integrity verification, and token signing.

Can I hash files with this tool?

Yes. Drag and drop a file or use the file picker to compute its hash. The tool reads the file entirely in your browser and generates checksums for all supported algorithms so you can verify downloads and deployments.

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