--- title: "BIP-39 Seed Phrase Generator - TechVoyage" canonical_url: "https://techvoyage.dev/tools/bip39-seed-phrase" last_updated: "2026-10-20T09:53:41.820Z" meta: description: "Generate a BIP-39 mnemonic seed phrase (12–24 words) locally in your browser. Nothing is sent to a server." "og:description": "Generate a BIP-39 mnemonic seed phrase (12–24 words) locally in your browser. Nothing is sent to a server." "og:title": "BIP-39 Seed Phrase Generator - TechVoyage" --- # **BIP-39 Seed Phrase Generator** Generate a BIP-39 mnemonic seed phrase (12–24 words) locally in your browser. Nothing is sent to a server. **Words** **This phrase controls a wallet** Anyone who sees these words can spend the funds. Generate offline if possible, write the phrase down, and never store it in a screenshot, cloud note or password manager field you do not trust. Generated locally with the scure BIP-39 library and the Web Crypto API. Nothing leaves your device. ## **About this tool** This tool draws entropy from the browser's Web Crypto API and encodes it as a BIP-39 mnemonic using the standard English 2,048-word list and checksum. Twelve words represent 128 bits of entropy; twenty-four words represent 256 bits. The phrase is generated locally and never transmitted. ## **FAQ**
**How many words should I use?**
12 words (128 bits) is the common minimum; 24 words (256 bits) gives more headroom. Both are secure when generated with a good random source.
**Can I restore a wallet with this phrase?**
Yes. Any BIP-39 compatible wallet can import it. Keep in mind that BIP-39 is only the phrase; the wallet's chain and derivation path determine which addresses appear.
**Is generating a seed phrase online safe?**
Only if the page is trustworthy and runs locally. This page generates the phrase in your browser with no network request, but for meaningful funds the safest option is a dedicated offline device.