关于本计算器
Percent-encode and decode URL strings for query parameters, slugs and links, with one-click copy.
URL 编解码器
URL 字符串编码与解码。
hello%20world%20%26%20friends%3Fx%3D1
常见问题
Why encode URLs?
Spaces and symbols like &?= break query parsing; encoding makes them safe.
encodeURI or component?
This tool uses encodeURIComponent — strict, for parameter values.
Decode errors?
Lone % signs are invalid; fix or remove them.