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Hash Generator

Generate secure cryptographic hashes using MD5, SHA-1, SHA-256, SHA-384, or SHA-512. Perfect for data integrity verification and checksums.

Your hash will appear here...
✓ Hashes match! ✗ Hashes do not match

💡 How to Use This Tool

Generate cryptographic hashes in seconds. Follow these simple steps:

1

Choose an Algorithm

Select from MD5, SHA-1, SHA-256, SHA-384, or SHA-512 based on your security needs.

2

Enter Your Text

Type or paste the text, password, or data you want to hash.

3

Generate Hash

Click "Generate Hash" to create your cryptographic hash instantly.

4

Copy or Compare

Copy the hash with one click or use the Compare tab to verify hashes.

📖 About Hash Generator

What is a Cryptographic Hash?

A cryptographic hash function is a mathematical algorithm that converts input data of any size into a fixed-length string of characters, known as a hash or digest. This 'digital fingerprint' is unique to the input—even the smallest change produces a completely different output.

Common Algorithms

1. SHA-256 (Secure Hash Algorithm 256-bit)

Part of the SHA-2 family, it is the current industry standard. It's widely used in blockchain, SSL certificates, and package management.

2. SHA-512

Also part of SHA-2, it provides even higher collision resistance than SHA-256 by using a 512-bit digest.

3. MD5 (Message Digest 5)

An older, 128-bit algorithm. It is cryptographically broken and should NOT be used for security purposes, but it remains useful for non-security checksums.

4. SHA-1

A 160-bit algorithm that is also considered deprecated for high-security applications due to collision vulnerabilities.

Key Properties of Hashes

  • Deterministic: The same input always produces the same hash.
  • Quick to Compute: The hash should be generated quickly for any given data.
  • Pre-image Resistance: It should be infeasible to reverse the hash to find the original input.
  • Small Change, Big Impact: A minor change in input creates a drastically different 'avalanche' effect in the output.
  • Collision Resistance: It should be extremely difficult to find two different inputs that produce the same hash.

Use Cases

  • Data Integrity: Verifying that a downloaded file hasn't been tampered with or corrupted.
  • Password Storage: Storing hashes instead of plain-text passwords (usually combined with 'salt').
  • Digital Signatures: Ensuring the authenticity of digital documents.
  • Checksums: Quick verification of data similarity.

🔒 Algorithm Guide

⚠️ Legacy Algorithms

MD5 (128-bit) and SHA-1 (160-bit) are cryptographically broken. Use only for non-security purposes like checksums.

✅ Recommended

SHA-256 (256-bit) is the industry standard. Use SHA-384 or SHA-512 for maximum security.

❓ Frequently Asked Questions

Yes! All hash generation happens locally in your browser using JavaScript. Your data never leaves your device and is not sent to any server.
Use SHA-256 for most security purposes—it's the current industry standard. Use SHA-384 or SHA-512 for extra security. Avoid MD5 and SHA-1 for security-sensitive applications as they are cryptographically broken.
No, cryptographic hashes are designed to be one-way functions. It's computationally infeasible to reverse a hash back to its original input. This is what makes hashes secure for password storage and data verification.
Yes! This hash generator is completely free with no usage limits. No account or signup required. You can generate unlimited MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes.