Punycode Encode/Decode
Free online Punycode encoder/decoder. Convert between Unicode (e.g. zhongwen.cn) and Punycode (xn--fiq228c.cn). Client-side processing, instant results.
📖 How to Use
Enter text: Input a Unicode string or Punycode string.
Select mode: Encode converts Unicode to Punycode, Decode converts back.
Get result: Click Convert for instant results. Every operation runs on your device — Input and other values are never sent to a server.
❓ Frequently Asked Questions
Is my data safe when using Punycode Encoder/Decoder?
Absolutely. Everything runs locally: Input and other values are processed on your device, never sent to a server. No data is sent to any server, so there's zero risk of data leaks. Your information stays completely under your control.
Does Punycode Encoder/Decoder upload my data to a server?
No. Punycode Encoder/Decoder uses client-side processing — everything runs in your browser. Your data never leaves your device, and the tool works even without an internet connection.
Are there any usage limits for Punycode Encoder/Decoder?
Punycode Encoder/Decoder 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.
Can I use Punycode Encoder/Decoder on my phone?
Yes. Punycode Encoder/Decoder is fully responsive and works on phones, tablets, and desktops. The interface adapts automatically to your screen size.
Are converted files compatible with other software?
Yes. Converted files follow standard format specifications and are compatible with mainstream software and platforms.