Is 邮政编码查询 free? Do I need to register?

Yes, it's completely free. No registration required for most tools. Tools that store personal data (e.g., favorites, conversion history) optionally support login for cross-device sync.

Do I need to install anything to use 邮政编码查询?

No installation needed. Open the web page and use directly. Works in all modern browsers (Chrome, Edge, Firefox, Safari) on both desktop and mobile.

Is my data safe when using 邮政编码查询?

Tools marked "browser-local / no upload" process your files entirely on your device. Server-side tools (e.g., PDF conversion) delete temporary files immediately after processing — no persistent storage.

Are there daily usage limits on 邮政编码查询?

Most pure-frontend tools are unlimited. Tools that consume server resources (format conversion, OCR) have a free daily quota; logging in gives you a higher quota. Check "Remaining today" at the top of the tool page for details.

邮政编码查询

Select Province

Select City

Please select province and city to view postal codes

✨ Features

• Postal code lookup • Area to postal code • Postal code to area • Nationwide data

📖 How to Use

Step 1

Input area or code

Step 2

Click query

Step 3

View result

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邮政编码查询

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