Bip39 Compliant Passphrase Some words are shorter than four letters, like the word “act”. Other words are longer than 4 letters, such as “summary”. You can see the total source code in standalone, offline html file. Alternatively it is possible to Verify the individual css and js data files in https://bookmarkchamp.com/story18468578/what-is-a-seed-phrase-seed-phrase-generator-an-overview