Free Online URL Parameters Parser & Formatter

Free online URL parameter parser and formatter. Parse, decode, and analyze query strings instantly. No signup - 100% free, private, works offline for API development.

Free Online URL Parameters Parser & Formatter Tool Introduction

Need to parse URL parameters online for free? Our powerful URL Parameters Formatter instantly parses, formats, and analyzes URL query strings - completely free with no signup required. Essential for developers working with web APIs, debugging HTTP requests, and manipulating URL parameters.

Perfect for API development, debugging query strings, analyzing URL parameters, testing API endpoints, and understanding complex URLs. The tool automatically decodes URL-encoded parameters, displays them in a readable table format, and allows easy editing and reconstruction.

Our formatter handles complex URLs with multiple parameters, nested values, array parameters, and special characters. Whether you're debugging API calls, analyzing tracking URLs, or building query strings, this tool streamlines your workflow.

All processing happens locally in your browser with no data transmission. Your URLs and parameters remain completely private and secure.

Free Online URL Parameters Parser & Formatter User Guide

Getting Started

Using the URL Parameters Formatter is simple and efficient:

Basic Usage

  1. Paste URL: Copy and paste a URL with query parameters
  2. Auto Parse: The tool automatically extracts and decodes parameters
  3. View Table: See all parameters in a clean, organized table
  4. Edit & Rebuild: Modify parameters and generate new URL

Key Features

  • Auto Parsing: Automatically extract parameters from any URL
  • URL Decoding: Decode URL-encoded values automatically
  • Table View: Display parameters in an easy-to-read table
  • Edit Parameters: Add, modify, or remove parameters
  • Rebuild URL: Generate new URL with updated parameters
  • Copy Functions: Copy individual values or entire URL
  • Array Support: Handle array parameters (param[]=value)
  • Special Characters: Properly handle encoded special characters

Common Use Cases

API Development

  • Debug API Calls: Analyze query parameters in API requests
  • Test Endpoints: Build and test different parameter combinations
  • Parameter Validation: Verify parameter names and values
  • Documentation: Create clear examples of API parameters

URL Analysis

  • Tracking URLs: Analyze marketing and tracking parameters
  • UTM Parameters: Decode and understand UTM tracking codes
  • Referral Links: Examine affiliate and referral parameters
  • Search Queries: Analyze search engine query parameters

Debugging

  • HTTP Requests: Debug query strings in HTTP requests
  • Form Submissions: Analyze GET form submission parameters
  • Redirect URLs: Decode parameters in redirect chains
  • Error Investigation: Identify problematic parameters

Development Tasks

  • Build Query Strings: Construct complex query strings easily
  • Parameter Testing: Test different parameter values
  • URL Manipulation: Modify URLs programmatically
  • Integration Testing: Prepare test URLs with parameters

Understanding URL Parameters

Basic Structure

URL parameters follow this format:

https://example.com/path?param1=value1¶m2=value2
  • Base URL: https://example.com/path
  • Question Mark (?): Separates path from parameters
  • Parameters: param1=value1¶m2=value2
  • Ampersand (&): Separates multiple parameters

URL Encoding

Special characters must be encoded:

  • Space: %20 or +
  • Ampersand (&): %26
  • Equals (=): %3D
  • Question Mark (?): %3F
  • Hash (#): %23

Array Parameters

Multiple values for same parameter:

  • Bracket notation: ?tags[]=javascript&tags[]=react
  • Repeated keys: ?tag=javascript&tag=react
  • Comma-separated: ?tags=javascript,react

Best Practices

  • Always URL-encode parameter values with special characters
  • Use descriptive parameter names (camelCase or snake_case)
  • Keep parameter names consistent across your API
  • Avoid sensitive data in URL parameters (use POST body instead)
  • Document expected parameter formats and types
  • Validate parameter values on the server side

Tips & Tricks

  • Paste any URL to instantly see all parameters decoded
  • Use this tool to debug tracking pixels and analytics URLs
  • Copy individual parameter values for testing
  • Build complex query strings without manual encoding
  • Analyze competitor URLs to understand their parameters
  • Test API endpoints with different parameter combinations

Examples

Example 1: Search URL

Input: https://example.com/search?q=hello+world&page=2&sort=date

Parsed Parameters:

  • q: hello world
  • page: 2
  • sort: date

Example 2: Tracking URL

Input: https://example.com/?utm_source=google&utm_medium=cpc&utm_campaign=summer_sale

Parsed Parameters:

  • utm_source: google
  • utm_medium: cpc
  • utm_campaign: summer_sale

Frequently Asked Questions