Hash Generator

Generate MD5, SHA-1, SHA-256, and other cryptographic hashes from text or files. Instant hash calculation.

About Hash Functions

MD5

128-bit hash function. Fast but no longer considered secure for cryptographic purposes. Still useful for checksums and data integrity verification.

SHA-1

160-bit hash function. More secure than MD5 but deprecated for cryptographic use. Still used in legacy systems and Git version control.

SHA-256

256-bit hash function. Part of SHA-2 family. Currently secure and widely used for cryptographic applications, including Bitcoin and SSL certificates.

SHA-512

512-bit hash function. Also part of SHA-2 family. Provides higher security than SHA-256 at the cost of longer hash values.

How to Use

Text Mode

  1. Enter your text in the input area
  2. Click "Generate Hashes" to calculate all hash values
  3. Copy individual hashes using the Copy buttons

File Mode

  1. Select a file using the file input
  2. Click "Generate File Hashes" to start processing
  3. Wait for the calculation to complete (progress bar will show)
  4. Copy the hash values you need

Common Use Cases

  • File Integrity: Verify files haven't been corrupted or modified
  • Password Storage: Store hashed passwords (use SHA-256 or better)
  • Digital Signatures: Create unique fingerprints for documents
  • Data Deduplication: Identify duplicate files or content
  • Blockchain: Generate addresses and verify transactions

Security Notes

  • MD5 & SHA-1: Not recommended for security-critical applications
  • Password Hashing: Use dedicated password hashing algorithms like bcrypt, scrypt, or Argon2
  • Salt: Always use salt when hashing passwords
  • Privacy: All hashing is done in your browser - no data is sent to servers