In the world of the internet and web development, you’ve probably heard the terms URL and URI being tossed around. Sometimes people use them interchangeably — but are they the same thing? Not exactly.

This article will help you clearly understand the difference between URL and URI, using real-world examples like www.google.com, and break everything down into simple language. Whether you’re a student, a developer, or just a curious browser, this guide is for you!


🔍 What is a URI?

URI stands for Uniform Resource Identifier.

A URI is a generic identifier used to name or locate a resource on the internet — it could be a website, a file, an image, a video, or anything else accessible online.

Think of a URI as an umbrella term. It includes both URLs and URNs (Uniform Resource Names).

👉 Definition:

A URI is a string of characters that uniquely identifies a resource either by location, by name, or both.

🔗 Example of a URI:

In the above examples:

  • The first one is a URL (a type of URI).
  • The second is a URN (it names a book but doesn’t tell you where to find it).

🌐 What is a URL?

URL stands for Uniform Resource Locator.

It is the most common type of URI and is what we use every day to locate a resource on the web. If you’ve ever typed www.google.com into your browser — that’s a URL.

👉 Definition:

A URL is a type of URI that tells you how to reach a resource using a specific protocol like http, https, ftp, etc.

🔗 Example of a URL:

Each of these examples contains:

  • A scheme (https, ftp)
  • A domain or IP address
  • Optional paths, queries, and fragments

✅ Key Differences: URI vs URL

Let’s compare them side-by-side so you can remember easily.

FeatureURIURL
Full FormUniform Resource IdentifierUniform Resource Locator
PurposeIdentifies a resourceLocates a resource
TypesIncludes URLs and URNsOnly a type of URI
Exampleurn:isbn:0451450523, https://google.comhttps://google.com/search?q=chatgpt
Used in Web BrowsersSometimes (mostly URLs are used)Always

🔍 Real-World Examples

Here are some common web examples that are URLs (and thus also URIs):

All of these are URLs, and therefore URIs.


🧠 Quick Summary to Remember

  • Every URL is a URI, but not every URI is a URL.
  • A URI can either locate (URL), name (URN), or both.
  • URLs are what you use in your browser’s address bar to open a webpage.

📌 Final Thoughts

Understanding the difference between URL and URI might seem technical at first, but it’s a small yet important piece of web literacy. The next time you enter a web address or debug a piece of code, you’ll know exactly what you’re working with!

Whether you’re a beginner in web development, learning about HTTP and internet protocols, or just expanding your digital knowledge, this fundamental concept will always be useful.

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