URL Query String Extractor: Get Parameters from URLs

Extract and view all query parameters from any URL with our free tool. Easily see UTM tags, session IDs, and other tracking data embedded in web addresses. Paste a URL to get a clean breakdown of its query string.

URL Query String Extractor

Extract and display all query parameters from a URL

URL or Query String

Example

Input URL

https://example.com/search?q=hello&page=1&sort=desc

Extracted Parameters

q = hello
page = 1
sort = desc

How It Works

This tool extracts and parses query string parameters from URLs, making it easy to see what data is being passed and manipulate individual parameters.

The extraction process:

URL parsing: The tool identifies the query string portion (everything after ?).
Parameter splitting: The query string is split on & characters to separate individual parameters.
Key-value extraction: Each parameter is split on = to separate keys from values.
Decoding: Percent-encoded values are decoded for human-readable display.

The result is a clean list of all parameters with their keys and values, making it easy to understand what data a URL contains or modify specific parameters.

When You'd Actually Use This

Debugging Web Applications

Inspect query parameters to understand what data your application is receiving.

Marketing Link Analysis

Extract UTM parameters and other tracking data from campaign URLs.

API Testing

View and verify query parameters in API endpoints during development.

Security Auditing

Identify sensitive data being passed in URLs that should use POST instead.

URL Modification

Extract parameters, modify values, and rebuild URLs for testing different scenarios.

Log Analysis

Parse query strings from server logs to understand user behavior and traffic patterns.

What to Know Before Using

Query strings are visible and logged

Unlike POST data, query parameters appear in browser history, server logs, and referrer headers. Never pass passwords or sensitive data in query strings.

Parameter order doesn't matter

?a=1&b=2 is the same as ?b=2&a=1. Some tools may reorder parameters, but the meaning remains the same.

Duplicate keys have special handling

URLs can have ?tag=a&tag=b. Different systems handle this differently - arrays, last-wins, or first-wins.

Empty values are valid

?flag= means the parameter exists but has no value. This is different from the parameter being absent.

Fragment identifiers aren't query parameters

Everything after # is the fragment/hash, not part of the query string. It's handled separately by browsers.

Common Questions

What's the difference between query string and path parameters?

Query strings come after ? (example.com/search?q=term). Path parameters are part of the URL path (example.com/search/term). Query strings are optional; path params are required for the route.

How do I pass arrays in query strings?

Common conventions include: ?tags[]=a&tags[]=b (PHP style), ?tags=a,b (comma-separated), or ?tags=a&tags=b (repeated keys). The convention depends on your backend.

Is there a limit to query string length?

Technically no HTTP spec limit, but browsers and servers impose limits. IE has ~2000 character limits. Apache defaults to 8190 bytes. Keep query strings under 2000 characters for compatibility.

Why are some values encoded and others not?

Special characters (spaces, &, =, etc.) must be encoded. Alphanumerics and some symbols (-_.~) don't need encoding. The tool decodes everything for readability.

Can query strings affect SEO?

Yes, excessive parameters can create duplicate content issues. Use canonical tags, parameter handling in Search Console, or rewrite URLs to avoid SEO problems.

How do I remove query parameters from a URL?

Simply remove everything from ? onwards. Or use this tool to extract the base URL without the query string portion.

What about query parameters in POST requests?

POST requests can have both query parameters (in the URL) and body data. They're separate - query params are for routing/filtering, body data is the main payload.

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URL Query String Extractor: Get Parameters from URLs