Web / HTML

URL Encoder/Decoder

Encode and decode full URLs, individual URL parameters or query strings. The tool is useful for API calls, tracking parameters, form values and technical tests.

Mode Scope

Treat spaces as plus signs, like form URLs Decode repeatedly when values were encoded more than once Show parameter analysis Mark common tracking parameters

URL, query string or parameter value

Name	Value	Note
No parameters detected yet.

When is URL encoding useful?

Query strings

Parameter values such as search terms, email addresses or spaces should be encoded so they can be transferred safely in URLs.

APIs

Correct encoding prevents special characters such as &, = or # from changing the parameter structure.

Tracking parameters

The analysis highlights common parameters such as utm_source, utm_medium, utm_campaign, gclid or fbclid.