1. LT Browser
LT Browser from LambdaTest offers developer tools to rival Chrome, it offers side-by-side comparisons of a site in different viewports. Additionally, LT Browser has a number of features that make it stand out.
2. Firefox Developer
The standard Firefox is an excellent browser, the developer edition adds to this with a suite of tools aimed at developers. The CSS and JavaScript debugging tools are superb, and the Grid tools are unparalleled for coding layouts.
3. Polypane (Paid)
Polypane allows you to compare different viewports and platforms by placing them side by side. Interactions like scrolling are synced. It even has a suite of accessibility tools, including some handy color blindness simulators.
4. Blisk (Paid)
Blisk is awesome fun to play with and delivers a great preview of a responsive design. URL and scrolling are synced, making testing interactions and animations effortless. You’ll need a very large screen to get the most out of Blisk.
5. Sizzy (Paid)
Sizzy also has synchronized interactions and allows you to screenshot different views. Sizzy also includes a very clever synchronized inspect tool. It’s an excellent option for debugging, particularly if it is someone else’s code.
6. Brave
Brave’s main benefit for developers is that it supports Chrome extensions while maintaining privacy — it can even access the Web using Tor if simple privacy mode isn’t enough for you. It runs 3x faster than Chrome (and is privacy-focused).
7. The Good Old Chrome
The world’s default browser is still the best browser for web developers. No matter the site you’re designing, it has to work well in Chrome, and no simulator is as good as the real thing. Not to mention those sweet extensions.