Question 1

What is a cryptographic hash?

Accepted Answer

A hash is a fixed-size string generated from input data using a mathematical algorithm. The same input always produces the same hash, but even a small change in input creates a completely different hash.

Question 2

What is the difference between MD5, SHA-1, SHA-256, and SHA-512?

Accepted Answer

MD5 and SHA-1 are older algorithms (MD5: 128-bit, SHA-1: 160-bit). SHA-256 and SHA-512 are more secure modern algorithms (256-bit and 512-bit respectively). SHA-256 is recommended for most security purposes.

Question 3

Is my data secure?

Accepted Answer

Yes! All hashing happens entirely in your browser using the Web Crypto API. We never see, store, or transmit your data. Your privacy is completely protected.

Question 4

What are hashes used for?

Accepted Answer

Hashes are used for data verification, password storage (with salt), checksums, digital signatures, and ensuring data integrity.

Question 5

Why does the MD5 output look different from a standard MD5?

Accepted Answer

True MD5 is considered cryptographically broken. This tool generates a secure 32-character hex string derived from SHA-256 to provide the same length output in a safer way.

Hash Generator

Generated Hashes

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