About This Tool
What is URL 编码 / 解码?
A tool for encoding and decoding URL strings. URL encoding is essential when web addresses contain special characters, spaces, or non-ASCII characters like CJK text. It ensures safe transmission of query parameters in web requests.
How to Use
- Enter the string you want to encode or decode in the input area.
- Click 'Encode' to convert special characters to percent-encoding (%XX).
- Click 'Decode' to restore encoded strings to their original characters.
- Copy the result for use in your project.
Key Features
- Standard URL encoding based on encodeURIComponent
- Full support for non-ASCII characters including CJK
- Bidirectional encode/decode conversion
- Real-time result display
Tips
- Special characters like &, =, ?, and # must be encoded in URLs to work as intended.
- Spaces are converted to %20 or + during URL encoding.
- Always encode user input in query parameters when making API calls.
URL 编码 / 解码
对 URL 字符串进行编码或解码
Frequently Asked Questions
encodeURI()和encodeURIComponent()有什么区别？▼
encodeURI()编码整个URI但保留特殊字符如:、/、?和#。encodeURIComponent()编码所有字符包括这些特殊字符，使其适合编码单个查询参数值。
为什么空格有时显示为%20，有时显示为+？▼
%20是URL中空格的标准百分号编码。+号仅在application/x-www-form-urlencoded格式（HTML表单提交）中使用。两者都表示空格，但%20在URL中更为通用和正确。
我需要在URL中编码韩文或日文等非英文字符吗？▼
是的。非ASCII字符必须经过URL编码才能安全传输。现代浏览器在地址栏中显示解码后的字符以提高可读性，但实际的HTTP请求使用编码形式。