URL Params Parser
Parse, edit, and build URL query parameters interactively.
About this tool
A URL parameters parser is an essential tool for developers, testers, and anyone working with web applications. Query strings—the part of a URL after the question mark—often contain critical data like search terms, filters, or authentication tokens. Manually decoding and editing these parameters is error-prone and time-consuming, which is why this interactive parser automates the entire process.
Using this tool is straightforward: paste your complete URL or just the query string into the input field, and the parser instantly extracts and displays each parameter as a key-value pair. You can edit values directly in the interface, add new parameters, remove existing ones, or copy the modified URL back to your clipboard. The tool also handles special characters and URL encoding automatically, ensuring nothing gets lost in translation.
This tool is indispensable for API testing, debugging, and URL manipulation tasks. Whether you're building dynamic URLs for tracking pixels, constructing API requests with complex filters, or simply investigating how a web application constructs its URLs, this parser eliminates manual string manipulation and keeps your workflow fast and accurate.
Frequently Asked Questions
Code Implementation
from urllib.parse import urlparse, parse_qs, urlencode
def parse_url_params(url: str) -> dict:
parsed = urlparse(url)
params = parse_qs(parsed.query, keep_blank_values=True)
# parse_qs returns lists; flatten single-value lists
return {k: v[0] if len(v) == 1 else v for k, v in params.items()}
def build_url(base: str, params: dict) -> str:
return base + "?" + urlencode(params)
url = "https://example.com/search?q=hello+world&lang=en&page=1"
params = parse_url_params(url)
print(params)
# {'q': 'hello world', 'lang': 'en', 'page': '1'}Comments & Feedback
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