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Convert between native system encodings (like GBK, Big5) and ASCII representations to resolve garbled text and transmission issues.

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Parse JWT headers, payloads, and key information online. No installation required—just paste and decode.

ASCII Code Lookup & Converter
Convert between characters and ASCII codes. Supports decimal, hexadecimal, and binary formats.

ASCII Encoder & Decoder
Free online tool for two-way conversion between text and ASCII (decimal) codes. Ideal for programming, debugging, and data transmission.

UUencode & UUdecode Tool
Convert binary data to uuencoded text and vice versa online. Supports full format parsing, ideal for processing legacy emails and files.

Online JWT Parser & Decoder
Parse JWT headers, payloads, and key information online. No installation required—just paste and decode.

ASCII Code Lookup & Converter
Convert between characters and ASCII codes. Supports decimal, hexadecimal, and binary formats.

ASCII Encoder & Decoder
Free online tool for two-way conversion between text and ASCII (decimal) codes. Ideal for programming, debugging, and data transmission.

UUencode & UUdecode Tool
Convert binary data to uuencoded text and vice versa online. Supports full format parsing, ideal for processing legacy emails and files.
Text to ASCII Art Generator
Convert plain text into visual ASCII art. Perfect for code comments, social media, and more.
When you copy Chinese text from legacy systems to ASCII-only environments (such as certain command lines, URLs, or database fields), garbled or unrecognized characters often appear. The core function of this tool is to resolve the conversion between native system encodings (like GBK for Simplified Chinese and Big5 for Traditional Chinese) and pure ASCII character sequences. It is essentially an "encoding/decoding" process: representing non-ASCII characters (like Chinese characters) as pure ASCII characters (e.g., "\u4E2D") through specific encoding rules (like UTF-8 or Unicode escape sequences), or restoring this ASCII representation back to original readable characters.
Q: What is the "\u4E2D\u6587" format output by "Native to ASCII"?
A: This is a Unicode escape sequence. Each "\u" is followed by a 4-digit hexadecimal number representing the Unicode code point of a character. For example, "\u4E2D" corresponds to the Chinese character "中". This format consists of pure ASCII characters and can be safely stored and transmitted in any ASCII-only environment (such as legacy configuration files or URL parameters).
Q: What are the input format requirements for ASCII to Native conversion?
A: The input must be a properly formatted Unicode escape sequence, meaning "\u" followed exactly by a 4-digit hexadecimal number (0-9, A-F). For example, "\u0041\u0042" will correctly convert to "AB". The tool will not parse other formats like "U+4E2D" or "中". Incorrect formats will result in conversion failure or garbled output.
Please be aware of the source text's encoding type (e.g., GBK) to choose the correct conversion direction. This tool handles the conversion of text character encoding representations, not the encoding format of files themselves. Although the conversion result (ASCII sequence) has poor readability, it is a precise encoding mapping. Please copy it completely to avoid truncation. For complex text containing many special symbols or mixed encodings, we recommend processing it in segments to ensure accuracy.
When you need to embed Chinese text in scenarios that strictly require an ASCII character set (such as string literals in certain programming languages, JSON that doesn't support non-ASCII keys, or legacy email headers), using this tool to convert text into Unicode escape sequences is standard practice. A typical example: in JavaScript code, you can directly use "\u4E2D\u6587" as a string, and it will be interpreted as "中文" at runtime. Conversely, when you capture such escape sequences from logs or network packets, you can use this tool to quickly restore their true content for easier debugging and analysis. Remember, the conversion process does not change the semantics of the text; it only changes the representation of its underlying bytes.