URL Builder

What is an URL Builder?

Visually construct URLs with automatic percent-encoding for query parameters, base path inputs, port numbers, and hash fragments.

Why Use This Tool?

Marketing Campaign Tracking: Build clean UTM tracking URLs for Google Analytics campaigns.
API Request Construction: Visually assemble complex API endpoint URLs with query parameters.
Error Reduction: Avoid syntax errors like missing `?` or `&` query delimiters.

How to Use

Enter Base URL (e.g. `https://devdeskapp.com/search`).
Add Query Parameters as key-value pairs (e.g. `q` = `developer tools`).
Copy the fully assembled, percent-encoded URL.

Real Working Example

Input:

Base: https://devdeskapp.com/search | Key: q, Value: web & seo | Key: page, Value: 1

Output Result:

https://devdeskapp.com/search?q=web%20%26%20seo&page=1

Important Technical Details & Features

Auto Percent Encoding: Encodes parameter values automatically using encodeURIComponent.
Dynamic Key-Value Row Management: Add, edit, or remove parameter rows dynamically.
100% Client-Side Engine: Instant URL generation.

Related Web & SEO Tools

URL Parser: Parse URLs into components.
URL Encoder: Encode URL strings.
Slugify String: Generate URL slugs.

Frequently Asked Questions

Does it automatically encode spaces and special characters in parameters?

Yes, special characters and spaces are percent-encoded automatically.

Can I add UTM marketing parameters?

Yes, add utm_source, utm_medium, utm_campaign key-value rows easily.

Is it free?

Yes, 100% free.

Does it run in browser memory?

Yes, 100% client-side execution.

What is the main function of URL Builder?

Build URLs visually by adding base paths, protocol, hash fragments, and key-value query parameters automatically encoded. This tool processes url builder data 100% locally inside your web browser.