Hash Generator
Generate MD5, SHA-1, SHA-256 and SHA-512 hashes instantly. Nothing leaves your browser.
Paste text and its expected hash to verify they match. Useful for verifying downloaded files.
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Frequently asked questions
What is a hash?
A hash is a fixed-length string generated from any input using a mathematical algorithm. The same input always produces the same hash but it is impossible to reverse the hash back to the original input.
What is SHA-256 used for?
SHA-256 is widely used in security applications — verifying file integrity, storing passwords securely, digital signatures, and blockchain technology like Bitcoin.
What is the difference between MD5 and SHA-256?
MD5 produces a 128-bit hash and is faster but considered cryptographically broken. SHA-256 produces a 256-bit hash and is much more secure. Use SHA-256 for security purposes and MD5 only for checksums.
Is my data safe?
Yes. All hashing is done entirely in your browser using the Web Crypto API. Your data never leaves your device.
Can I reverse a hash?
No. Hash functions are one-way — it is computationally impossible to reverse a hash back to the original input. This is what makes them useful for security.