Does my data leave this browser?

No. Everything here runs locally in this tab - nothing is uploaded, logged, or sent to a server.

MD5 and SHA-1 are fine for checksums and deduplication but are not considered cryptographically secure anymore - for passwords or security-sensitive hashing, use SHA-256 or SHA-512.

Dev tool studioPrivate on this device

Hash Generator

Generate MD5, SHA-1, SHA-256, and SHA-512 hashes

Frequently asked questions

Does my data leave this browser?: No. Everything here runs locally in this tab - nothing is uploaded, logged, or sent to a server.
Is MD5 safe to use?: MD5 and SHA-1 are fine for checksums and deduplication but are not considered cryptographically secure anymore - for passwords or security-sensitive hashing, use SHA-256 or SHA-512.