Bip39 js https://franciscougju442.bravesites.com/entries/general/Produce-Bitcoin-Addresses-from-Seed-Every-Little-Thing-You-Required-to-Know A BIP39 seed phrase produced with ideal randomness can't be guessed by way of brute force, since there are just too many permutations. Due to the cryptographic design of BIP-39, a weak passphrase isn't going to lessen the security of the opposite... https://worldlistpro.com/story22531579/bip39-cli-bip39-compatible-wallet-options-https-linktr-ee-bip39