Add the requested inputs
Use the labelled fields in the workspace above. If example values are provided, try them first or replace them with your own.
Developer tools · Free online tool
Hash generator
Create SHA-256, SHA-384 or SHA-512 digests from text using Web Crypto.
3 guest runs per rolling 24 hours10 with a free accountPrivate inputsMobile-friendly
Hash generator workspace
Runs locally in your browser
A fast SHA digest is useful for checksums, but plain SHA is not suitable for password storage.
Hex digest
Use it with confidence
How to use the hash generator.
Calculate and review
Use the main action when needed. UTF-8 bytes are passed to crypto.subtle.digest and displayed as hexadecimal and Base64.
Try a worked example
Hash the same text twice to confirm the same digest, or compare a published checksum.
Check the assumptions
A plain fast hash is not suitable for storing passwords; password storage needs a salted, slow password-hashing function.
Helpful answers
Hash generator FAQs.
Is the hash generator free?
Yes. Guests receive 3 runs per rolling 24 hours, verified free accounts receive 10, and Premium subscribers receive unlimited normal use.
Does UtilHub upload or save my inputs?
No. This tool runs in your browser and UtilHub does not receive or store the values you enter. Your browser or device may still retain normal local history or form data.
How does this hash generator work?
UTF-8 bytes are passed to crypto.subtle.digest and displayed as hexadecimal and Base64.
What should I check before using the result?
A plain fast hash is not suitable for storing passwords; password storage needs a salted, slow password-hashing function.