Free online text hash calculation tool, supports MD5, SHA1, SHA256, SHA512 and other hash algorithms, one-click hash generation, all calculations done locally, secure and reliable
Support MD5, SHA1, SHA256, SHA512 and more
All hash calculations done locally in browser
Real-time hash calculation as you type
One-click copy for each hash result
Using standard hash algorithms, compatible everywhere
No registration required, unlimited usage
Enter or paste text to calculate hash in the input box. Click "Add Example" for sample text.
Hash values are calculated automatically as you type. Results appear instantly for all algorithms.
Click "Copy" button next to each hash to copy the value. Use in your applications or verification.
Verify password hashes and checksums
Verify file integrity and detect changes
Validate data consistency in applications
Generate unique identifiers for records
Generate signatures for API requests
Verify downloaded file checksums
MD5 (Message-Digest Algorithm 5) is a widely used cryptographic hash function producing 128-bit (16-byte) hash value, typically expressed as 32-character hexadecimal number. Designed by Ronald Rivest in 1991. While still used for checksums, not recommended for security applications due to vulnerabilities.
SHA256 (Secure Hash Algorithm 256-bit) is a cryptographic hash function producing 256-bit (32-byte) hash value, expressed as 64-character hexadecimal. Part of SHA-2 family designed by NSA. More secure than MD5 and SHA1, widely used for security applications and blockchain.
MD5: 128-bit, fastest, broken for security use. SHA1: 160-bit, fast, also broken. SHA256: 256-bit, slower, secure for most uses. SHA512: 512-bit, slowest, most secure. For security applications, use SHA256 or SHA512. For checksums, MD5 or SHA1 still work.