Bip39 checksum calculator https://archerujcb329.tearosediner.net/comprehending-the-function-of-bip39-in-copyright-pocketbooks Though it employs BIP32 approach you may nevertheless import BIP39 seeds into Electrum wallet. Also other than BIp32 You can find BIP44 Model which some wallet use for that generation of seeds. Thanks to the cryptographic layout of BIP-39, a weak passphrase wou... https://freshbookmarking.com/story20688340/bip39-phrase-the-5-second-trick-for-bip39-mnemonic-code-converter-tool-https-t-me-bip39-chat