使用密码学安全随机数生成BIP39标准助记词（Mnemonic Seed Phrase），支持12/15/18/21/24个助记词长度。纯前端本地处理，不上传服务器。
选择长度：选择助记词数量，推荐12个（128位熵）。
生成助记词：点击生成按钮，工具使用Web Crypto API生成密码学安全随机数。
安全保存：将助记词抄写在纸上并存放在安全位置，切勿在线传输或截图保存。
No. BIP39 Mnemonic Generator uses client-side processing — everything runs in your browser. Your data never leaves your device, and the tool works even without an internet connection.
No. BIP39 Mnemonic Generator is a web-based tool — just open it in your browser and start using it. No downloads, plugins, or extensions required.
Yes. BIP39 Mnemonic Generator is fully responsive and works on phones, tablets, and desktops. The interface adapts automatically to your screen size.
Absolutely. All processing happens locally in your browser. No data is sent to any server, so there's zero risk of data leaks. Your information stays completely under your control.
BIP39 Mnemonic Generator has no usage limits — it's free and unlimited. Since processing is done client-side, speed depends on your device. For very large files, we recommend processing in batches for the best experience.
Some tools make real requests (like HTTP header checkers) while others work locally. Check the tool description for details.