Bip39 Online. While you'll find BIP39 wordlists in languages other than English, it is actually strongly not advisable to make use of non-English words for wallet backups. It would make restoring the wallet hard or not possible. No, there is not any specialized limit to your duration of your passphrase. https://infopagex.com/story4115752/bip39-list-https-linktr-ee-bip39-how-much-you-need-to-expect-you-ll-pay-for-a-good-bip39-wallets