What is URL encoding?

URL encoding replaces unsafe ASCII characters with a '%' followed by two hex digits. This ensures special characters are safely transmitted in URLs.

What's the difference between encodeURI and encodeURIComponent?

encodeURI encodes a full URL but preserves characters like :, /, ?, &. encodeURIComponent encodes everything including those characters, making it suitable for query parameter values.

When should I URL encode?

Always URL encode when passing user input as query parameters, form data, or any URL component that may contain special characters like spaces, &, =, or #.

URL 编码 / 解码

对 URL 和 URI 组件进行编码或解码。支持 encodeURIComponent 和 encodeURI。

Input

Output

关于 URL 编码

URL 编码将不安全的 ASCII 字符替换为 "%" 加两位十六进制数字。这对于在 URL、查询参数和表单数据中传递特殊字符至关重要。使用 encodeURIComponent 编码查询参数，使用 encodeURI 编码完整 URL。

使用方法

Enter text in the input field
Choose between URI Component or Full URI encoding mode
Click 'Encode' or 'Decode'
Copy the result

使用场景

Encoding query parameters in URLs
Encoding form data for submission
Handling special characters in API requests
Debugging URL encoding issues

URL 编码 / 解码

关于 URL 编码

更多工具

使用方法

使用场景

常见问题