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Query String Builder

Build & edit query strings from key/value pairs.

How it works

Build a query string from key/value pairs — each value is percent-encoded correctly, so spaces and & inside a value won't break the URL. Or paste an existing URL to pull its parameters into the table and edit them.

q=blue+suede+shoes&page=2

Parameters

Query string
q=blue+suede+shoes&page=2
Full URL
https://example.com/search?q=blue+suede+shoes&page=2

Spaces become + in query strings (the standard form-encoding), which servers decode back to spaces.

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