Query Parameter Extractor

A query parameter (also called URL parameter or query string) is the part of a URL that comes after the ? symbol. It contains key-value pairs separated by &. For example, in https://example.com/search?q=term&page=2, the parameters are q=term and page=2. They are often used to pass data to web servers or to track user behavior.

Simply paste your URL into the input field above and click Extract (or let the tool auto‑extract). The tool parses the query string and displays every key‑value pair in a table. Each value is automatically decoded for readability. You can also copy individual values or export the whole set as JSON or a query string.

Special characters in URLs (spaces, symbols, non‑ASCII letters) are not allowed and must be percent‑encoded. For instance, a space becomes %20. Our tool automatically decodes these values using decodeURIComponent(), so you see the human‑readable form. If a value is malformed, the raw encoded string is displayed.

The extractor groups all values under the same parameter name. In the table you will see them as a comma‑separated list (e.g., php, javascript). When you copy that value or export to JSON, the tool preserves the multiple values. In JSON output, the key will hold an array if there are multiple values, or a single string otherwise.

You can paste a complete URL (like https://site.com/page?key=val), a relative URL, or even a raw query string (e.g., key1=val1&key2=val2). The tool is smart enough to detect the query part. If you only have the part after the ?, just paste it directly.

Each parameter row has a copy button () that copies its full value. At the top you find buttons to Copy as JSON (gives a structured object) or Copy as Query String (reproduces the original key‑value pairs with proper encoding). A brief "Copied!" confirmation appears after each click.

No. All processing happens entirely in your browser using JavaScript. The URL or query string you enter is never transmitted over the network or stored on any server. Your data stays private.

A key can be present with no value (e.g., ?debug). In that case the table shows an empty value cell. The tool still recognizes the parameter, and you can copy the empty string or include it in exports.