Hash Generator
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from text. Free online hash calculator.
Security Note: MD5 and SHA-1 are considered cryptographically broken and should not be used for security purposes. Use SHA-256 or SHA-512 for secure applications.
Frequently Asked Questions
What is a hash?
A hash is a fixed-size string generated from input data using a mathematical algorithm. The same input always produces the same hash.
What's the difference between hash algorithms?
Different algorithms produce different hash lengths and security levels. SHA-256 and SHA-512 are more secure than MD5 and SHA-1.
Can hashes be reversed?
No! Hash functions are one-way. You cannot reverse a hash to get the original input. This makes them useful for password storage.
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