Sidekick Browser

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Sandcat Browser

Otter Browser is a cross-platform, free and open-source web browser that is designed to be very modular. With Otter Browser, the user can replace whole bookmarks manager or history viewer by the use of plugins and the built-in abstraction layer. The browser is built with the Qt WebEngine as a wrapper around Chromium and released under the GPLv3 and is available for Linux, macOS, and Windows platforms.

Kiwi Browser is a Andrioid-based web browser made to browse the internet, read news, watch videos and listen to music, without annoyances. Kiwi offers a bunch of customization options, allowing you to move the address bar to the bottom, add a hand button to reach the top of the screen, swipe from the edge to navigate in the browser, and see a simplified view for web pages, among others.

Lucid Browser is a free and open source mobile web browser designed to be lightweight, fast, and simple. The application is designed for quick start-ups and simplistic, while still providing features seen in other popular mobile web browser.Lucid Browser is available for Android and weighs in at only 4MB in total.

With Opera Developer Browser you can join in on the earliest experiments for the browser. The browser is recommended to be used by developers, enthusiasts and advanced users. Opera Developer Browser and Opera Beta Browser was introduced to improve the development cycle of the browser and to beta tests new version before final release, to the public.

As a developer you will love Firefox Developer Edition! It is a blazing fast browser that includes the latest development tools such as support for CSS grid debugging, CSS shape path editor, the variable fonts inspector, and many other features. Firefox Developer Edition is also handled as a separate profile compared to your regular Firefox setup, so you don't have to worry that your Firefox Developer Edition settings will affect your regular browsing experience. As a developer the Firefox Developer Edition browser is a must have.

A free and open-source web browser based on Goanna. Pale Moon is designed and developed with an emphasis on customizability, hence their motto "Your browser, Your way". The browser is available for Linux and Windows and is a for of Firefox with substantial divergence to make it as customizable as possible.