[ free_tool // runs entirely in your browser ]

Secret Sharing

Split a secret into several shares so that any kof them rebuild it and any fewer reveal nothing at all — Shamir secret sharing, done with your browser’s CSPRNG. Hand out the shares to different people or places; no single one is a leak. Nothing is sent anywhere. Need a strong secret first? Use the password generator.

split a secretcombine shares

secret to split (text — a password, recovery phrase, key…)

total shares (n): 5needed to reconstruct (k): 3

any 3 of 5 shares rebuild the secret; 2 reveal nothing.