Devtools 2017: Beginner to Expert w/ Chrome Developer Tools
4.4 (87 ratings)
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Devtools 2017: Beginner to Expert w/ Chrome Developer Tools

The Complete 2017 Guide to Building Beautiful, Fast, and Bug Free Web Applications with Google Chrome DevTools
Best Seller
4.4 (87 ratings)
Instead of using a simple lifetime average, Udemy calculates a course's star rating by considering a number of different factors such as the number of ratings, the age of ratings, and the likelihood of fraudulent ratings.
609 students enrolled
Created by Rocco Balsamo
Last updated 4/2017
Current price: $12 Original price: $125 Discount: 90% off
4 days left at this price!
30-Day Money-Back Guarantee
  • 2.5 hours on-demand video
  • 4 Supplemental Resources
  • Full lifetime access
  • Access on mobile and TV
  • Certificate of Completion

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What Will I Learn?
  • Modify live webpages and test out new ideas quickly
  • Quickly build and test scripts live without ever refreshing the browser
  • Diagnose and fix problems with existing code
  • Optimize loading, memory and performance issues
View Curriculum
  • You have basic knowledge of HTML, CSS and/or Javascript

Do you want to become an expert web developer?

I've worked with tons of different platforms from PC to Playstation, and nothing beats the power of Google Chrome Developer Tools. Let's take advantage of that.

This course is the comprehensive guide to DevTools. We start with simple styling examples, and use tools like the colorpicker and box shadow editor to design our pages. But we move quickly to advanced topics like using the Audits panel to understand slow page performance, and the memory panel to understand why our app might be leaking memory.


  • I learned a lot of things I didn't know about although I've used Devtools for many years-Bernard Niset
  • My first Udemy course, but I enjoyed it thoroughly. I have some prior experience with chrome dev tools, but there were still some tips I will be taking with me from this course - Stephen Wong
  • The instructor is clear and concise and the course is loaded with information. There are even some valuable nuggets for experienced developers! - Tom Fitch

Here's a sample of what you'll be able to achieve after taking this class:

  • Add advanced styling with built-in editors like the animations panel and the transitions editor.
  • Using six different breakpoint techniques, you'll be able to understand and debug any piece of javascript code.
  • Analyze network calls, and even hack the dinner reservation system on Yelp.
  • Speed up your page load speeds with Audits and Lighthouse to make your site blazingly fast.
  • Profile and fix rendering, CPU and memory bottlenecks.

Every minute of this course provides valuable information and there is minimal repetition and typing. The course was built in 2017 with a prerelease version of Chrome and even demonstrates the use of experimental features such as Workspaces 2.0.

For the beginners, I start slow, but work quickly towards advanced usage, and for the experts, I've made sure to sprinkle in original techniques to improve your web pages that can't be found anywhere else.

Who is the target audience?
  • Anyone with an interest in taking their web development skills to the next level.
  • Developers / Programmers / Software Engineers
  • UI/UX Designers
  • Artists
  • Project / Product Managers
Compare to Other Chrome Developer Tools Courses
Curriculum For This Course
39 Lectures
A Tour of the Developer Tools
6 Lectures 23:38

An introduction to why Chrome Devtools are so important, and the different topics that we'll cover in the class.

Preview 03:29

Learn the three ways to open Chrome Developer Tools, and get an introduction to your instructor.

Preview 02:14

Understand how to type Javascript commands into the console and how to enter multiline statements like for loops or functions.

Console Commands and Multiline Statements

A brief overview of:

  • Networking
  • Security
  • Sources Pretty Print
  • Application Tab and Cookies
  • Audits
Sources, Network, and Other Panels

Use the inspector to preview live styling changes on a webapp called TodoMVC.

Preview 04:34

Get before and after snapshots of your page edits. Understand where your changes were made on the page with the Meld diff tool.

How to View Your Changes
Setting Up a Local Server
2 Lectures 08:35

Download a webapp, and run it on a simple server using python, with specific instructions for Mac.

Static Python SimpleServer

Get the tools to run a BASH terminal with Python support on windows and start a simple static server.

Windows Server Setup
Snippets & Alternate Ways to Understand Your Changes
4 Lectures 10:40

Understand that styling changes are only temporary, and get introduced to Javascript snippets to run code on any webpage.

Introducing Snippets

Copy changes from the inspector to your hosted webpage.

Applying Changes

CSS History

Learn how to find and enable experimental Devtools features, and use Workspaces with persistence 2.0 to automatically save code to your hard drive from Devtools.

Experimental Chrome Features & Workspaces
GUI Style Editors
2 Lectures 09:22

Use the color picker, shadow editors and transition editor.

The Various Style Editors

Use the animations editor to modify animation timing, and use the cssanimate tool to develop keyframe CSS animations.

Animations Editor
Basic Javascript Debugging
3 Lectures 15:24

Stop code with breakpoints in the debugger, and step through that code to understand how it works.

Using the Debugger in the Sources Panel

Learn the important keyboard shortcuts for debugging and fix some problems with Mac shortcuts.

Keyboard Shortcuts for Debugging

Understand the call stack and use the async button to debug event driven code.

The Call Stack
Navigating & Applications Tab
2 Lectures 05:32

Use keyboard shortcuts to jump around in your code and in the devtools panels.

Finding Stuff

Cookies and Local Storage with the Application Tab
Console API & Shortcuts
4 Lectures 19:06

Use multiline console statements, and understand where to find info about the Console API.

Console Multiline and Asserts

Learn various console functions like dir, dirxml, group, warn and time.

Miscellaneous Console Functions

Run profiles from the console, understand different chrome versions, and use "dollar shortcuts" to quickly tweak DOM elements with Javascript.

Console Profile & Dollar Shortcuts

Add styling and images to your console messages!

Console Styling
5 Lectures 18:38
Types of Breakpoints

Review of how to stop your code with line-of-code breakpoints and the debugger statement.

Line of Code Breakpoints

Stop your code only when a certain condition is met.

Conditional Breakpoints

Stop your code when the DOM changes or when an AJAX / XHR request is made.

DOM and Network Breakpoints

Stop code when an event occurs or an error is thrown.

Event and Exception Breakpoints
Network, Page Speed and Security
5 Lectures 18:10

Download content from Codepen to run it locally.

Downloading From

The Network Panel

Use the network panel to understand real-world network requests, and hack the calls made to a live API.

Preview 04:01

Understand where to find problems with page load and an intro to Lighthouse for advanced performance checking.

Improve page load speed with Audits & Lighthouse

Learn how to look at HTTPS issues with devtools, and a solution for delivering your own development HTTPS server.

Security and HTTPS with NGrok
Client Side Performance Monitoring
4 Lectures 16:05

Introduce an example which shows CPU, memory and rendering slowness.

Introducing a Client Performance Example

Use the Task Manager, frames per second meter, and rendering tab to detect memory and performance problems on your site.

Preview 04:30

Look at your page performance over time, view memory and CPU usage, and Javascript code profiling.

Performance / Timeline Tab

A real world memory leak and how to diagnose similar problems with the memory tab.

Detecting Memory Leaks
1 More Section
About the Instructor
Rocco Balsamo
4.4 Average rating
297 Reviews
8,019 Students
2 Courses
Founder at

Rocco is founder of Simmer Industries, a place for developers to share their WebGL content. WebGL is an open standard on the web that enables 3D graphics in the web browser.

Previously, Rocco was a Senior Developer at TINT where he focussed on frontend development and user experience. He has 15+ years of development experience and has shipped dozens commercial video games and web applications over his career.

He taught Computer Science II and was a teacher's assistant for Java Enterprise Programming at Rensselaer Polytechnic Institute, and occasionally speaks at industry events such as ForwardJS, HTMLDevConf and Unity Unite.

He's a volunteer mentor at MissionBit in San Francisco where he teaches public high school students how to begin web programming.

When he's not writing code or teaching, he enjoys skiing, bike riding and traveling.