Generate strong random passwords instantly. Customize length, characters, and complexity.
Hash Generator
Generate MD5, SHA - 1, SHA - 256, and SHA - 512 hashes from any text instantly in your browser.
Hash functions are essential for verifying file integrity, generating checksums, storing passwords securely, and detecting duplicate data. Whether you are validating a download, signing an API request, or comparing two files, having a quick way to compute hashes saves time and prevents mistakes.
How to use
- Enter or paste text into the input field.
- Select a hash algorithm: MD5, SHA - 1, SHA - 256, or SHA - 512.
- The hash is computed automatically as you type.
- Copy the result or toggle between uppercase and lowercase output.
Privacy and processing
All processing happens in your browser. Your data is never sent to our servers.
Frequently Asked Questions
What is a hash function?
A hash function takes an input of any length and produces a fixed - length string of characters. The same input always produces the same hash, but even a tiny change in input creates a completely different output.
Is hashing the same as encryption?
No. Encryption is reversible with a key, while hashing is a one - way operation. You cannot recover the original text from a hash value.
Which hash algorithms are supported?
This tool supports MD5, SHA - 1, SHA - 256, and SHA - 512. SHA - 256 and SHA - 512 are recommended for security - sensitive use cases.
Is MD5 still safe to use?
MD5 is not collision - resistant and should not be used for security purposes. It is still acceptable for non - security checksums like verifying file downloads.
What is the difference between SHA - 256 and SHA - 512?
SHA - 256 produces a 256 - bit (64 - character) hash while SHA - 512 produces a 512 - bit (128 - character) hash. SHA - 512 offers more bits of security but both are considered strong.
Is my data sent to your servers?
No. All hashing is performed locally in your browser using the Web Crypto API and JavaScript. Your text never leaves your device.
Can I hash a file with this tool?
This tool hashes text input. For file hashing, copy the file contents as text or use a command - line tool like sha256sum.
Why does a small change produce a completely different hash?
This property is called the avalanche effect. It ensures that similar inputs do not produce similar hashes, which is critical for security.