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MD5 / SHA-1 / SHA-256 Hash Generator

Free online hash generator. Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from text using the browser's Web Crypto API. No data sent to servers.

Input Text
Hash Output
💡 What is this

Hash Generator

  • Generates cryptographic hash digests (MD5, SHA-1, SHA-256, SHA-512) from text input.
  • SHA-256 and SHA-512 use the browser's native Web Crypto API for maximum security.
  • MD5 uses a lightweight JavaScript implementation.
📖 How to use

Step by Step

  • Enter or paste text in the input field
  • Select the hash algorithm from the dropdown
  • Click Generate Hash to compute the digest
  • Copy the resulting hex string
🎯 Use cases

When to use

  • Verifying file integrity with checksums
  • Creating content fingerprints
  • Comparing data without revealing originals
  • Generating cache-busting keys

Frequently Asked Questions

Is my data sent to a server?
No. All hashing is done entirely in your browser using the Web Crypto API (for SHA) or a pure JavaScript MD5 implementation. No data ever leaves your device.
Is MD5 secure?
MD5 is considered cryptographically broken and should not be used for security. It's still useful for checksums and non-security fingerprinting. Use SHA-256 or SHA-512 for security.
Can I hash files?
Currently this tool hashes text input. For file hashing, you can paste file contents or use a dedicated file hash tool.