Query String Parser
Break a URL query string into decoded key–value pairs, edit them and build a new query string.
Runs in your browser. Your input is processed on your device and is not uploaded to our server.
| Key | Value (decoded) |
|---|
How to use the Query String Parser
- Paste a full URL or just the query string.
- Edit, add or remove parameters in the table.
- Copy the rebuilt query string or URL.
Parameters are decoded with the WHATWG URLSearchParams rules, so + becomes a space and percent-escapes are decoded. Repeated keys (tag=a&tag=b) are kept in order. Useful for debugging tracking links, API calls and redirects.
Frequently asked questions
Are UTM parameters shown?
Yes. Every parameter is listed, and UTM parameters are labelled.