Seed Phrase Generator
Educational tool for understanding BIP-39 seed phrase generation. Learn how cryptocurrency wallet recovery phrases work.
⚠️ Educational Tool Only - Do NOT use for real cryptocurrency wallets
Seed Phrase Generator
Generate BIP-39 compatible seed phrases for cryptocurrency wallets
Security Warning - Read Carefully
- • This tool is for educational purposes only
- • For real wallets, use official wallet software
- • Browser-generated randomness may not be cryptographically secure
- • Never use a seed phrase generated online for real funds
- • This page should be used offline only
About BIP-39 Seed Phrases
BIP-39 defines a standard for generating mnemonic seed phrases from random entropy. These phrases can be used to derive cryptocurrency private keys. The standard uses a wordlist of 2048 words, and phrases are typically 12 or 24 words long.
🚨 For Real Wallets
Always generate seed phrases using official wallet software like Ledger Live, Trezor Suite, MetaMask, or other reputable wallet applications. These tools use hardware-based random number generators and have been audited for security.
How to Use
- 1Read warnings — Understand that this is for educational purposes only.
- 2Select word count — Choose 12, 15, 18, 21, or 24 words.
- 3Acknowledge disclaimer — Confirm you understand the security implications.
- 4Generate phrase — Click generate to create a sample seed phrase.
Frequently Asked Questions
What is a seed phrase?
A seed phrase (also called recovery phrase or mnemonic) is a list of words that stores all the information needed to recover a cryptocurrency wallet. It is the master key to your funds.
Why should I NOT use this for a real wallet?
Browser-based random number generation may not be cryptographically secure. For real wallets, always use official wallet software with hardware-based entropy sources.
What is BIP-39?
BIP-39 is a Bitcoin Improvement Proposal that defines a standard for generating mnemonic seed phrases. It uses a wordlist of 2048 words and includes a checksum for error detection.
Why are there different word counts?
More words = more entropy = more security. 12 words provide 128 bits of entropy, while 24 words provide 256 bits. Both are considered secure, but 24 words is recommended for large holdings.
How should I store a real seed phrase?
Write it on paper or metal (for fire resistance), store in a secure location, never store digitally, never take photos, and consider splitting it across multiple locations.