Should you adopted the ways above now you need to be capable to build and validate the correctness of BIP-39 seeds by yourself (with negligible support from tools like binary to hex to decimal converters). bip39-phrase.com can be an informational website devoted to technologies and tools for protected copyright storage. https://thesocialdelight.com/story4358604/the-ultimate-guide-to-bip39-seed-phrase-github