Question 1

What is a hash function?

Accepted Answer

A hash function is a mathematical algorithm that converts input data of any size into a fixed-size string of characters. The output (hash) is unique to the input - even a tiny change in input produces a completely different hash.

Question 2

What is the difference between MD5 and SHA-256?

Accepted Answer

MD5 produces a 128-bit (32 character) hash and is faster but considered cryptographically broken. SHA-256 produces a 256-bit (64 character) hash and is more secure. For security purposes, SHA-256 or SHA-512 is recommended.

Question 3

Is my data secure when using this hash generator?

Accepted Answer

Yes, all hashing is performed entirely in your browser using JavaScript. Your data never leaves your device or gets sent to any server. This client-side processing ensures complete privacy.

Question 4

Can I hash a file?

Accepted Answer

Yes! Switch to the 'File Input' tab and drag & drop a file or click to select one. The tool will generate MD5, SHA-1, SHA-256, and SHA-512 hashes for the file contents.

Question 5

What is SHA-512 used for?

Accepted Answer

SHA-512 is used for password hashing, digital signatures, file integrity verification, and blockchain applications. It produces a 512-bit (128 character) hash and is one of the most secure hash algorithms available.

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