URL Query String Builder Online
Free online query builder that URL-encodes keys and values to assemble safe search strings.
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Free online query builder that URL-encodes keys and values to assemble safe search strings.
How it works
This tool URL-encodes keys and values and assembles a query string. It helps prevent broken URLs when values contain reserved characters.
Example
Input: page=2 tag=js Output: ?page=2&tag=js
FAQ
Should I encode spaces as %20 or +?
For URLs, %20 is standard. + is common in application/x-www-form-urlencoded contexts.
How do I include arrays?
Common patterns include repeating keys (tag=a&tag=b) or bracket syntax (tag[]=a&tag[]=b).
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