Hash Generator
About Hash Functions
? Frequently Asked Questions
What hash algorithms are available?
Common algorithms include MD5, SHA-1, SHA-256, SHA-512, and SHA-3. SHA-256 is recommended for security purposes, while MD5/SHA-1 are faster but cryptographically broken for sensitive uses.
What's the difference between hashing and encryption?
Hashing is one-way (cannot be reversed), while encryption is two-way (can be decrypted). Hashing is for data integrity and password storage, encryption is for keeping data confidential but recoverable.
Can I hash files or just text?
The tool can hash both text strings and uploaded files. File hashing is used to verify downloads (checksums), detect duplicate files, and ensure file integrity during transfer.
Why do small changes produce completely different hashes?
This is called the avalanche effect - a fundamental property of cryptographic hashes. Even changing one bit produces a completely different hash, making it impossible to predict how similar hashes will be.
Are MD5 and SHA-1 still safe to use?
MD5 and SHA-1 are broken for cryptographic purposes (collisions found) and shouldn't be used for passwords or security. They're still acceptable for non-security uses like checksums or cache keys. Use SHA-256+ for security.
Is my data safe and secure?
Yes, absolutely! This tool runs entirely in your browser. All data processing happens locally on your device - nothing is uploaded to our servers. Your files and data never leave your computer, ensuring complete privacy and security.