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Which Browser Uses the Least CPU?

Which Browser Uses The Least Cpu 1

There are several browsers in the market, many of which offer amazing features. Commonly, browser extensions have become a thing that gives a browser added functionality while still using one app. Sadly, most popular browsers use a lot of CPU. If you have a limited CPU on a computer, it is logical to want to use a browser that demands the least CPU. So, the question now is which browser uses the least CPU? 

Quick Answer

One of the best browsers you can use that uses the least CPU and memory in Microsoft Edge. Also, Google Chromium uses less CPU and can be an excellent alternative for people who are already used to using Chrome which uses a lot of CPU. 

There are several other browsers you can use that have minimal CPU usage and yet don’t compromise on functionality and speed. In this guide, we will be talking about these browsers and how you benefit from each of them. 

So, if you want to learn more about your popular browsers, hang in there and keep reading.

Top 5 Browsers That Use the Least CPU

This guide section will discuss the top five browsers that use the least CPU. While making this choice, we also considered convenience, security, and customization options. So, here are the top five browsers that use the least CPU. 

Browser #1: Microsoft Edge 

Microsoft Edge is a browser launched in 2015 by Microsoft and has remained the one browser that uses the least CPU compared to other browsers when scrolling web pages and watching a video. Apart from that, Microsoft Edge is more efficient, with battery usage consuming less than 31% battery power than Chrome

Microsoft Edge is even a more recommended option if you are using a Windows PC since the browser is built into the OS, so it requires fewer resources than other browsers to function. So, if your Windows laptop is struggling to stream videos or web-related stuff on other browsers, then it’s time to switch. 

Browser #2: Chromium 

If you are a Chrome-based user, an alternative you can use is Chromium. Switching to Chromium will still give you access to many of your favorite extensions such as HubSpot Sales, Todoist, Reply, etc. Chromium also supports all the standard web technologies such as HTML5 3D graphics, HTML5 animations, HTML5 audio, HTML5 videos, and so on.

Chromium is similar to the Google Chrome browser but is pretty different. Think of Chromium as a lighter version of Google Chrome. Chromium is built with JavaScript/C++ and assembly for low-level GPUs. Also, Chromium uses Skia as a graphics library, contributing to its light performance. 

Browser #3: Opera 

Opera is a very popular browser with a Chromium-based look, so you can expect it to have similar features and design. But unlike Chrome, Opera doesn’t store your information in the engine, which makes it light and requires fewer resources. 

Despite the Opera browser being light, it still comes with several built-in features such as mouse gestures to move between tabs. The Opera Turbo mode, in particular, is another feature of Opera that stands out as it speeds up your browsing by compressing pages using Opera-owned sever before loading it on your computer.

Browser #4: Mozilla Firefox 

Mozilla Firefox is a free and open-source browser from Mozilla Foundation. It is a browser available on PCs as well as mobile devices. Regarding its CPU usage, Firefox uses 30% fewer resources than Chrome. Firefox can achieve this through its Quantum engine

Firefox quantum engine makes use of a multiprocess architecture. What this means is that each tab has its process. So, when one tab crashes, other tabs on Firefox remain intact. Also, each tab is allocated its memory. So, if your PC starts running low on storage, it will shut down individual tabs rather than the whole browser freezing. 

Browser #5: Safari 

The Safari browser from Apple is a free and lightweight browser you can use. It uses WebKit as its rendering engine, contributing significantly to its speed and simplicity. As a default browser for Mac computers, using it on your Mac wouldn’t use as many resources as third-party browsers. 

Safari is also available on Windows PC and is quite a powerful browser that gives you the best of your computer’s CPU usage and internet connection. The browser also has a clean interface, making it easy to find and access information when interacting. 

Keep in Mind

There is no fit-for-all browser. So, apart from searching for a browser that uses the least CPU, look for its different features.


As you can see from this guide, several browsers you can use consume minimal CPU. Each browser in this guide has its unique advantage over other browsers apart from its ability to use low resources. For example, Firefox is exceptionally useful when performing intensive graphics designing and video editing tasks. Different browsers have areas where they serve better than other browsers. So when choosing a browser that uses the least CPU, consider this. 

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