BIP39 Seed Phrase Generator
Generate a 12 or 24-word mnemonic seed phrase for cryptocurrency wallets. Operating offline for maximum security.
What is BIP39?
Bitcoin Improvement Proposal 39 (BIP39) describes the implementation of a mnemonic sentence (a group of easy to remember words) for the generation of deterministic wallets.
Common Mistakes
- Online Generation: Never generate a real wallet seed phrase on an internet-connected device. This tool is provided for educational/testing purposes, or for use when the HTML file is downloaded and run on an airgapped machine.
- Digital Storage: Taking a photo of your seed phrase or storing it in a standard unencrypted text file drastically increases risk.
FAQ
Q: How many possible words are there?
A: The standard BIP39 english wordlist contains 2048 words.