Hash Generator

Yes. All hashing operations happen entirely within your browser using the native Web Crypto API. No text or files are ever sent to a server.

No. Cryptographic hashes (like SHA-256) are one-way mathematical functions. They cannot be reversed to reveal the original input.

While MD5 is cryptographically broken and shouldn't be used for passwords, it is still commonly used for simple file integrity checks (checksums) where malicious tampering is not a primary concern.

A cryptographic hash is a mathematical algorithm that maps data of any size to a fixed-size bit string. Even changing a single character in the input will produce a completely different hash output.

SHA-256 (Secure Hash Algorithm 256-bit) is one of the most secure and widely used hashing algorithms today. It is used in everything from SSL certificates to Bitcoin mining.

This is called the "avalanche effect." Good cryptographic algorithms are designed so that even a 1-bit change in the input drastically changes the output, making it impossible to guess the original text.

Select the "File" option in the tool, then drag and drop your file into the box. The tool reads the file binary locally and calculates the hash without uploading anything to the internet.

SHA-1 is an older hashing algorithm. Like MD5, it is now considered cryptographically vulnerable to collision attacks, but it is still used in older systems like early Git version control for checksums.

Mathematically, they are exactly the same. Hashes are typically represented in lowercase hexadecimal, but some legacy systems require uppercase. Our tool lets you toggle between both.

If you downloaded a file and the website provided an expected hash, you can paste that expected hash into the Compare box. Our tool will instantly tell you if the generated hash perfectly matches.