Seed Phrase Generator

Generate cryptographically secure BIP39 mnemonic seed phrases for cryptocurrency wallets. 12 or 24 word options.

About Seed Phrase Generator

This tool generates BIP39-compatible mnemonic seed phrases using cryptographically secure randomness from your browser's crypto.getRandomValues() API. Choose between 12 words (128-bit entropy) for most wallets or 24 words (256-bit entropy) for maximum security. All generation happens entirely in your browser — nothing is sent to any server.

BIP39 Standard

Generates mnemonic phrases compatible with the BIP39 industry standard, used by Ledger, Trezor, MetaMask, Phantom, and most crypto wallets.

Cryptographic Entropy

Uses crypto.getRandomValues() for true cryptographic randomness. 128-bit (12 words) or 256-bit (24 words) entropy options.

Client-Side Only

All generation happens in your browser. Your seed phrase is never transmitted, logged, or stored on any server.

One-Click Copy

Copy your generated seed phrase with a single click. Displayed in a clean 3-column grid for easy reading and verification.

📋 Common Use Cases

Trade & Investment Analysis

Make data-driven crypto decisions with accurate profit/loss, ROI, and break-even calculations.

Portfolio Management

Track holdings, monitor performance, and maintain target allocations across your crypto investments.

Tax & Record Keeping

Generate accurate records for tax reporting and audit preparation.

DeFi & Strategy Planning

Evaluate staking, yield farming, and investment strategies before committing funds.

🪜 How to Use This Tool

  1. Enter your parameters
    Input amounts, prices, quantities, or addresses depending on the specific crypto tool.
  2. Configure settings
    Set your preferred display currency, tax jurisdiction, or network parameters.
  3. Review analysis
    See calculated results — profit/loss, fees, rewards, or decoded data — with clear breakdowns.
  4. Apply insights
    Use results to inform trading, staking, or development decisions. All data stays in your browser.

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Frequently Asked Questions

Are these crypto tools really free?▼
Yes. Every crypto tool on iluv.tools is completely free. No signup, no account, no payment. Everything runs in your browser.
Do I need to connect my wallet?▼
No. None of our crypto tools require wallet connection, transaction signing, or any blockchain interaction. All calculations and validations happen locally in your browser.
Is my crypto data safe?▼
Yes. All data stays in your browser. Portfolio tracker data is stored in localStorage — it never leaves your device. We never see your addresses, balances, or transaction data.