There are many alternatives to Dark Reader for Microsoft Edge if you are looking for a replacement. The best Microsoft Edge alternative is Midnight Lizard, which is both free and Open Source. If that doesn't work for you, our users have ranked more than 25 alternatives to Dark Reader, but unfortunately only two of them are available for Microsoft Edge. If you can't find an alternative you can try to remove all filters.
Midnight Lizard web-extension for Google Chrome™ and Mozilla Firefox™ provides custom color schemes for all websites.
Night Eye is a browser extension that enables dark mode on nearly any website. It does NOT simply invert the colors, but utilises a completely new approach that improves your browsing experience.
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Similar extension size as Dark Reader, but offers much more customization levels. It allows you to fine tune things like background image saturation and size.
If you want something smaller, you can just use an inversion extension, or even just change a setting on many browsers to invert.