Unicode Encoder & Decoder

Chinese Unicode Encoder & Decoder is a free online tool designed for developers, encoding enthusiasts, and everyday users. It allows you to instantly convert Chinese characters into Unicode escape sequences (e.g., \u4e2d\u6587), and decode Unicode back into readable Chinese text — all in real time, right in your browser.

What Is Unicode Encoding?

Unicode is an international character encoding standard that assigns a unique numeric code point to virtually every character in every language and script. Chinese characters are typically represented as \uXXXX, where XXXX is the hexadecimal code point for that character.

Unicode was designed to solve the fragmentation caused by legacy region-specific encodings (such as GBK, Big5, and Latin-1) and is now the universal standard for text on the modern internet and in software development.

Key Features

• Chinese to Unicode: Convert Chinese text into \uXXXX escape sequences for use in JSON, JavaScript, Java, and other environments.
• Unicode to Chinese: Decode \uXXXX escape strings back into readable Chinese text — useful for debugging and data inspection.
• Optional: Keep letters and numbers as-is: Choose whether to encode alphanumeric characters or leave them unchanged for flexibility.
• Real-time conversion: Results appear instantly as you type — no button clicks required.

Use Cases

• Encoding Chinese strings in JSON payloads for cross-platform compatibility;
• Debugging Unicode escape sequences in Java, Python, or JavaScript output;
• Understanding how Chinese characters are represented in computer systems;
• Handling ASCII-safe transmission of Chinese text in protocols or configs;
• Learning character encoding principles as a developer or student.

How to Use

1. Enter Chinese text in the input box — the Unicode encoding appears instantly on the right;
2. Or paste \uXXXX encoded text to decode it back to Chinese;
3. Toggle "Keep letters and numbers unchanged" as needed;
4. Click "Clear" to reset and start a new conversion.

Frequently Asked Questions

Q: Is Unicode the same as UTF-8?

Not exactly. Unicode is a character set that defines code points; UTF-8 is an encoding scheme that defines how those code points are stored in memory. The \uXXXX notation represents Unicode code points, not raw UTF-8 bytes.

Q: Why does my code show \uXXXX instead of Chinese characters?

This typically means the output was serialized using Unicode escape notation. Paste the \uXXXX string into this tool's decode box to restore the original Chinese text.

Q: Can I use the output directly in JavaScript?

Yes. JavaScript natively supports \uXXXX Unicode escape sequences in string literals, so you can paste the encoded output directly into your JS code.

Q: What characters are supported?

All characters within the Unicode Basic Multilingual Plane (BMP) are supported, including Simplified Chinese, Traditional Chinese, Japanese, Korean, and a wide range of special symbols.