Is my data sent to a server?

No. All processing is done in the browser, so your input is never transmitted externally.

What is the difference between SHA-256 and MD5?

MD5 is an older algorithm with known collision vulnerabilities and is not suitable for security use. SHA-256 is stronger and the modern standard.

No hash is displayed when the input is empty.

Yes, within the limits of browser memory. Very large files are not supported.

Yes. Use the case selector in the options bar.

Enter text and instantly compute 5 hash values. MD5 uses js-md5, SHA variants use the Web Crypto API.

Case

Input Text

MD5—

SHA-1—

SHA-256—

SHA-384—

SHA-512—

Type or paste the text you want to hash into the input area
MD5, SHA-1, SHA-256, SHA-384 and SHA-512 are computed simultaneously as you type
Use the case toggle to switch between lowercase and uppercase output
Click the copy button next to each hash to copy it to the clipboard

File integrity check:
Compare MD5 with the official checksum to detect tampering after a download.

Password hash verification:
Manually verify SHA-256 hashes during debugging.

Data equality check:
Quickly verify whether two texts are identical by comparing their hash values.

Is my data sent to a server?: No. All processing is done in the browser, so your input is never transmitted externally.
What is the difference between SHA-256 and MD5?: MD5 is an older algorithm with known collision vulnerabilities and is not suitable for security use. SHA-256 is stronger and the modern standard.
What happens with empty input?: No hash is displayed when the input is empty.
Can it handle large amounts of text?: Yes, within the limits of browser memory. Very large files are not supported.
Can I toggle uppercase/lowercase output?: Yes. Use the case selector in the options bar.

Last Updated: 2026-02-20