Hash Calculator

Generate cryptographic hashes (SHA-1, SHA-256, SHA-512)

Generate cryptographic hashes for any text or data. Supports MD5, SHA-1, SHA-256, SHA-512, and more hash algorithms. Verify file integrity, create checksums, or hash passwords. Essential for security work, data verification, or comparing files. All hashing happens locally in your browser for maximum privacy.

⚠️ Security Notice: SHA-1 is not recommended for security purposes. Use SHA-256 or SHA-512 for cryptographic applications.

About Hashing Algorithms

Cryptographic hash functions take an input and produce a fixed-size string of bytes. The output is unique to each input (collision-resistant).

SHA-1 (160-bit)

  • Deprecated for security applications
  • Vulnerabilities discovered in 2017
  • Being phased out in favor of SHA-2 family

SHA-256 (256-bit)

  • Part of SHA-2 family
  • Widely used and considered secure
  • Used in Bitcoin and many security applications

SHA-512 (512-bit)

  • Strongest SHA-2 variant
  • Excellent for high-security applications
  • Slower but more secure than SHA-256

How to Use

  1. 1 Enter the text or data you want to hash
  2. 2 Select your desired hash algorithm (MD5, SHA-256, etc.)
  3. 3 Click 'Calculate Hash' to generate the cryptographic hash
  4. 4 Copy the hash output for verification, checksums, or storage
  5. 5 Use for password hashing, file verification, or data integrity checks