SoftnagFree

URL Parser & Query String Analyzer

Developer Tools

Deconstruct and analyze URLs into Protocol, Hostname, Port, Path, Hash, and structured Query String parameters with parameter editing.

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Protocolhttps:
Hostnamesoftnag.qzz.io
Port443
Pathname/tools/search
Hash / Fragment#active-tab
Originhttps://softnag.qzz.io

Query Parameters (4)

Parameter KeyDecoded Value
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Who Is URL Parser & Query String Analyzer Built For?

Web developers debugging complex redirect URLs, OAuth callbacks, and deep links
Digital marketers analyzing UTM campaign tags and affiliate tracking parameters
API engineers inspecting query string keys, values, and REST endpoint parameters

Key Benefits & Core Capabilities

Structured Component Deconstruction

Breaks URLs into Protocol (http/https), Hostname, Port, Pathname, Search, and Hash anchor.

Query Parameter Table & Editor

View, edit, add, or delete individual query parameters with automatic URL re-construction.

Decodes Percent-Encoded Values

Displays human-readable decoded parameter values alongside raw encoded strings.

Client-Side Security

Analyze private API endpoints and authentication URLs locally with 100% confidentiality.

Step-by-Step Guide: How to Use URL Parser & Query String Analyzer

  1. 1
    Paste URLPaste any web address containing paths and query parameters.
  2. 2
    Inspect ComponentsView the table of protocol, origin, pathname, hash, and query key-value pairs.
  3. 3
    Copy ValuesCopy specific decoded parameters or clean URLs.

How It Works & Technical Architecture

The Softnag URL Parser utilizes the browser’s WHATWG URL API (new URL(urlString)) to parse URI components in compliance with RFC 3986.

It parses URLSearchParams into key-value pairs, decoding percent-encoded characters while preserving duplicate query parameter keys.

When you modify a query parameter in the interactive table, the tool automatically re-serializes the updated URL in real time.

Practical Use Cases & Applications

UTM Tracking Parameter Auditing

Inspect utm_source, utm_medium, and utm_campaign values on marketing links.

OAuth Callback URL Debugging

Inspect code, state, and redirect_uri parameters in OAuth 2.0 authorization URLs.

API Endpoint Construction

Build and test complex REST API queries with multiple filter and pagination parameters.

Deep Link Verification

Analyze mobile app deep links and universal link URL structures.

Supported Formats & Input Options

Full HTTP/HTTPS URLsRelative PathsQuery Strings (?key=value)Custom Protocol URIs

Frequently Asked Questions

Can I edit query parameters and get an updated URL?

Yes. You can edit, add, or remove query parameters in the table, and Softnag will generate the updated URL in real-time.

Does the tool decode percent-encoded characters in query values?

Yes. The parser shows both the decoded human-readable value and the raw percent-encoded representation.

How does it handle duplicate query keys (e.g. ?tag=web&tag=css)?

Softnag displays all occurrences of duplicate keys in the parameter table, preserving array query formats.

Are my private API URLs uploaded to any server?

No. All URL parsing and rebuilding happen entirely within your local browser memory.

Can I copy the parsed query parameters as JSON?

Yes. You can copy the entire query parameters object as structured JSON with one click.

Does this handle malformed query strings?

Yes. The parser safely decodes percentage-encoded symbols and parses multiple duplicate parameters into structured lists.