Checksum Calculator

Calculate MD5, SHA-1, SHA-256, and other hash values for files and text. Verify data integrity and security.

Text Input

File Input

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Hash Results

MD5
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All Algorithms

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Hash Comparison

About Hash Functions

MD5: Fast but cryptographically broken. Used for checksums but not security.

SHA-1: More secure than MD5 but also considered weak for cryptographic purposes.

SHA-256: Widely used for security, digital signatures, and blockchain.

SHA-384/512: Higher security variants of SHA-2 with longer hash lengths.

CRC32: Fast error-detection code, not cryptographically secure.

Common Uses

  • • Verify file integrity after downloads
  • • Check if files have been modified
  • • Password storage (with proper salting)
  • • Digital signatures and certificates
  • • Blockchain and cryptocurrency
  • • Data deduplication