The 10 Best Open-Source Web Browsers
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We all know about the best mainstream web browsers The Best Web Browsers for Windows The Best Web Browsers for Windows What is your default web browser? Even though we're spoiled for choice, the majority of us stick to the tried and tested major players. What are better alternatives for resource use, speed, and security? Read More . The usual suspects—Chrome, Opera, Safari, etc.—will always be in the conversation.

But what about open-source browsers? If you enjoy using open-source software, you have lots of options available to you.

In this article, we’re going to look at 10 of the best. Make sure you reach out with your recommendations in the comments at the end.

Why Use Open-Source Browsers?

Like all open-source software, using open-source browsers brings a few advantages. Perhaps most importantly, it lets you trust the software.

Browsers are uniquely placed in the app world: they can track you, spy on you, and follow you in a way that other apps cannot. Given we live in a world of government surveillance and Big Brother-esque online ad agencies, it’s hard to trust closed-source software vendors. The vendors are within reach of surveillance laws.

The nature of an open-source browser means anyone can study it, verify it, and detect issues. You can be more confident you’re not being watched or tracked.

The other benefits of open-source browsers mirror the benefits of open-source software in general 5 Reasons Why Software Should Be Free and Open Source 5 Reasons Why Software Should Be Free and Open Source Free software doesn't just mean you get to use the app or game without paying. It's about longevity, privacy, ownership, and much more! Read More , such as customizability, flexibility, and community support.

1. Chromium

open source browsers - Chromium

Chromium is Chrome’s twin brother. Google was responsible for starting both projects. However, while large parts of the Chrome app remain proprietary and closed source, Chromium is entirely open-source software.

Chromium uses the Blink engine. It the same engine as the one used by Chrome, thus meaning there’s barely any difference between the two interfaces or available features. You can even install Chrome extensions on Chromium. Though, it’s important to note that unlike Chrome, Chromium does not have a stable release as it is always under development. You have to manually update it while Chrome does it for you.

So, there are several alternatives to Chromium 9 Alternative Chromium Browsers That Beat Chrome at Its Own Game 9 Alternative Chromium Browsers That Beat Chrome at Its Own Game Google Chrome is the most popular browser today. But it has its problems too. These nine alternative browsers are lightweight and retain the technology that runs Chrome. Get the best of both worlds. Read More if you’d prefer to use a different app.

Download: Chromium

2. Midori

open source browsers - midori

If you’re a Linux user, you might already know about Midori. It’s the default browser on Elementary OS. For Windows, you can download it as an executable or run it as a portable software.

Midori focuses on being lightweight and fast. The developers have worked hard to make it align with the Xfce philosophy of doing as much as possible with the available resources.

Despite being lightweight, the browser still boasts all the critical features such as RSS support, a built-in spellchecker, bookmarks, and an extensive settings menu.

Download: Midori

3. Pale Moon

open source browsers - pale moon

Pale Moon started life as a Firefox fork, but it now bears little resemblance to its relative. It has a different layout engine and offers a different set of features.

Customization is at the forefront of the app. You can change its theme, reorganize the interface, create your own skin, and much more.

Features-wise, you can expect to find some Pale Moon-exclusive add-ons, support for HTML5 and CSS3, and a tab management screen. Firefox extensions also work in the app.

Download: Pale Moon

4. Links

open source browsers - links

Links is a bit different from the other browsers on this list. It has several oddities which you’ll struggle to find on other browsers.

Those oddities include fonts compiled into binary as grayscale bitmaps rather than being derived from the system (to allow the browser to be a single EXE file), and 48-bit high-quality image gamma correction (to enable high-quality processing).

Other features include a pull-down menu, HTML 4.0 support, and background DNS lookup.

Download: Links

5. Dooble

open source browsers - dooble

Dooble is less popular than some of the other browsers in this article, but it’s deserving of a mention.

You’ll have noticed each of the browsers we discuss has a particular forte. Dooble is one of the browsers whose forte is privacy 4 Anonymous Web Browsers That Are Completely Private 4 Anonymous Web Browsers That Are Completely Private A good way to protect your information on the web is to surf anonymously. Google Chrome’s Incognito mode can help to an extent, but you should also look at the following web browsers. Read More .

For example, it can block iFrames from third-party content providers, it automatically removes cookies, it uses the decentralized search engine YaCy, and any data it retains is saved using authenticated encryption.

Download: Dooble

6. QtWeb

open source browsers - qtweb

QtWeb uses the Qt framework and WebKit layout engine to create a fast and secure open-source browser.

It’s one of the most feature-laden browsers in this list. Noteworthy features include a native torrent download manager, an ad-blocker, support for mouse gestures, a privacy mode, and pop-up blocking.

Interestingly, QtWeb also offers a way to save web pages as PDFs; it’s a useful feature if you need to have content to hand if you know you’re going to be offline for an extended period.

Download: QtWeb

7. QupZilla

open source browsers - qupzilla

QupZilla started life as a research project but has since grown to become a feature-rich browser that operates on several platforms.

When it was first released in late 2010, the app used Python. However, the developers soon overhauled it and rewrote the entire browser in C++ with the Qt Framework.

All the usual features are present, including a bookmark bar and browsing history. It also ships with a native ad-blocker that’s enabled by default.

Download: QupZilla

8. Konqueror

open source browsers - konqueror

Konqueror is a multi-purpose app. As well as being a web browser, it also doubles as a file manager, a PDF viewer, an FTP client, a text editor, a spreadsheet editor, a word document editor, and much more.

The browser has a password manager and a pop-up blocker, and it supports on-the-fly language translation.

It’s worth noting that in order to run Konqueror on Windows, you will need to install KDE libraries. KDE is on non-Linux systems is still in an experimental state, so this browser might not be suitable if you’re not tech-savvy.

Download: Konqueror

9. SeaMonkey

open source browsers - seamonkey

Like Konqueror, SeaMonkey is much more than a mere web browser. It aims to be an all-in-one internet application suite.

It offers a built-in email client, a built-in chat client, and even an HTML editor that lets you develop your own (admittedly simple) web pages.

Other cools features include a password manager, mouse gestures, and—something that’s unique on this list—voice interaction. Lastly, the app has its own add-on library.

Download: SeaMonkey

10. Firefox

open source browsers - firefox

No list of open-source web browsers would be complete without mentioning Firefox. The app has grown to become the second most popular browser in the world after Chrome.

Its list of features is oft-repeated, but here’s a quick summary of what you can expect:

  • Cross-device syncing
  • Password manager
  • Private browsing
  • Tracker blocking
  • A vast add-on library

Download: Firefox

Which Open-Source Web Browser Should You Use?

Reading the article, you’ve probably realized there’s not one browser which can definitively be called the “best.” Your decision should be based on what’s important to you.

For example, I’ve spent much of the last decade using Chrome, and my desire for a smooth transition means I’d choose Chromium. Use the quick summaries below to establish which browser might be the best for you:

  • Familiarity: Chromium, Firefox
  • Speed: Midori, QtWeb
  • Customization: Pale Moon
  • Complexity: Links, Konqueror
  • Privacy: Dooble
  • Endless features: QtWeb, QupZilla, SeaMonkey

If you’d like to learn more about open-source software, check out our guide to the best open-source tools hosted on Github 10 Free Open Source Windows Tools Hosted on GitHub 10 Free Open Source Windows Tools Hosted on GitHub Microsoft is the organization with the most open source contributors on GitHub. To celebrate this achievement, we have compiled a list of the best free Windows tools you can download from GitHub. Read More .

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  1. Giuseppe C.
    May 5, 2018 at 4:42 pm

    Here the point is: if you run them on Windows 10 what is the tne one that takes the least CPU resource % then lest temperature.
    From that view, Chrome is by far the best choice if compared t Firefox.
    For example browsing, this web page takes 12.5% of my CPU and rises my SSD till 66 "C!

  2. DrShowMe
    May 4, 2018 at 7:05 pm

    I would think that what operating system(s) each browser runs on would be a minimum informational content for this kind of article.

  3. rodndtube
    May 4, 2018 at 4:33 pm

    Basilisk is my go-to browser now that Firefox 57 and beyond has for all intents and purpose eliminated the ability to easily customize the user-interface. Like Pale Moon it is a fork of Firefox.

  4. halfey
    April 28, 2018 at 9:29 am

    Some of these browsers haven't seen any update in ages (Midori) or has been discontinued (Qtweb). I don't see any point in recommending them to average users.

  5. zpangwin
    April 24, 2018 at 2:49 am

    Waterfox. Hands down. All the latest firefox features, plus security patches, AND I can still use legacy add-ons. Long live DownThemAll.

    • Warren
      April 24, 2018 at 7:59 am

      Agreed as to water fox. I 've tried a couple of the others but really leave me wanting. Midori was very buggy. Pale moon was okay but none of the others , with the exception of firefox seem very stable. I've grown to love vivaldi over most anything else. Still use waterfox occasionally. Lookin g at some of these some weren't updated since 2013 and that gives me pause as far as how security has kept up with the ever evolving threat landscape.

    • Perry F. Bruns
      May 8, 2018 at 5:41 pm

      I found out about Waterfox from the comments on a previous article on browsers, and I'm using it right now on just about all my devices.