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Niall Maher
Niall Maher

Posted on • Originally published at Medium on

Chrome Extensions You Should Install Today

In this article, we will look at five of my favourite Chrome Extensions that I use nearly every day.

I recently went through my Chrome extensions to clean out all of the ones I hadn't used recently (over a dozen it turns out). During this time, I took a little time to think which ones I had used over the past week or at least most weeks, and that's what inspired this article.

I chat about all of these in the video version of this article:

My Next.js video version of this article 📹


Lighthouse is an open-source, automated tool for improving the quality of web pages. You can run it against any web page, public or requiring authentication. It has audits for performance, accessibility, progressive web apps, SEO and more.

This tool is probably my most used extension, to generate easy to use reports with tips to optimise my projects or give prospects some fast advice on their applications. Here's an example of the quick overview:

Lighthouse report summary from Twitter Mobile

As you scroll down the page, you will see actions you can do to increase your performance in all of these areas. Having a detailed report like this is an awesome action plan when you are not sure how to get a better performing website or app.

Showing a performance breakdown from a Lighthouse report

axe by Deque

Accessibility checker for WCAG 2 and Section 508 accessibility. Find accessibility defects on your website or web application by using the axe Chrome extension. Drop the axe on your accessibility defects!

If you are ever on Twitter, you will notice a lot of shouting about accessibility, and rightly so as the web should be an inclusive place. No matter how healthy we are just one bad day away from needing an accessible website ourselves. Be compassionate, and with this tool, you can easily identify the fixes needed to create a fully WCAG compliant website.

You get a little extra tab in your Chrome developer tools that will tell you how you are doing:

axe report from from Chrome DevTools


Wappalyzer is more than a CMS detector or framework detector: it uncovers more than a thousand technologies in dozens of categories such as programming languages, analytics, marketing tools, payment processors, CRM, CDN and others.

This is a pretty fun extension for the curious developer. The extension can give you a full overview of the tech stack on a site. If we take an example of looking at a popular site like we get an awesome little breakdown of the site:

Wappalyzer report from

I really like seeing what my favourite sites are made of and I am sure you will too. I've also found a few new technology treasures from being nosey on sites with this plugin too.


The best Chrome extension for taking a screenshot of an entire webpage

Now more than ever, especially as remote working is climbing, being able to share a full-page screenshot is a handy trick to have access to. With just a click the extension hijacks your page starts scrolling taking screenshots and stitching together a seamless full-page screenshot. You can then choose to download the photo in PNG, JPG or PDF. Here is an example I took from my own YouTube channel:

Codú Community full-screen capture

I love being able to grab a large screenshot like this and sketching notes onto it with my tablet to share with people.


From grammar and spelling to style and tone, Grammarly helps you eliminate writing errors and find the perfect words to express yourself. You'll get real-time feedback from Grammarly on Gmail, Google Docs, Twitter, LinkedIn, and nearly everywhere else you find yourself writing. Grammarly is a writing assistant that offers you specific suggestions to help you improve your writing

Okay so this one isn't really targeting developers specifically, but this one really helps me give the illusion of professionalism and sound slightly less incompetent or dumb in my emails. This little plugin can quickly scan most text inputs and let you know if you are making some spelling mistakes, grammar errors and even help you with your tone. Honestly, I think Grammarly is my most used tool. It's getting used and abused a lot more lately by me since I started writing more content too. That's the reason I couldn't eave it out of my "Awesome Extensions List".

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An example of a suggestion whilst writing the last section

Thanks, Grammarly, for making me spell gooder...

Do you have any suggestions I missed that you would be lost without?

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Top comments (8)

sanketdg profile image
Sanket Dasgupta

Lighthouse is now a part of Chrome's Developer Tools, so you do not need to install it to use it on Chrome.

jamesthomson profile image
James Thomson

Same with full size screenshots. In dev tools open the command prompt (Cmd+Shift+P on Mac). Type in screenshot. Viola. A plugin may offer more formats/options, but I haven't found a need for anything extra myself.

nialljoemaher profile image
Niall Maher

I noticed it there during editing the video and thought it was from the plug-in. Great to know 🔥 Cheers!

exwhyzed profile image

Fantastic article Niall. An extension like Lighthouse was something I was looking for recently, your article got me covered. Thanks!

nialljoemaher profile image
Niall Maher

Lighthouse is a super plugin! I would be lost without it now that I know and trust it.

zeedu_dev profile image
Eduardo Zepeda

I would love a grammarly alternative for firefox that would use less resources. Grammarly slowed down firefox so much that I had to uninstall it :( Maybe I should give it a second try someday, but I don't think they care about the tiny market share that firefox represents.

equiman profile image
Camilo Martinez

GoFullPage is no need. On Chrome 59 was added the feature to take full-screen screenshots.

wannabehexagon profile image

I can't recommend axe and its entire ecosystem enough!!! It is the best toolset if you don't want to pull your hair out while testing for accessibility issues!