Adds dark mode to every website — customisable brightness, contrast, and colour temperature. Free and open source.
Editor's Verdict
Dark Reader is the best free dark mode extension for Chrome, Firefox, and Safari. It applies a customisable dark theme to every website — even ones without a native dark mode. Reduces eye strain during long development or research sessions. Open source.
Overall
4.7 / 5
Pricing
Free
Install Dark Reader
Official extension — always install from the verified source
Yes. Dark Reader is completely free and open source. There is a donation option to support development, but all features are available without paying.
Yes. Dark Reader has official Chrome, Firefox, Safari, and Edge versions. All offer the same customisation features including brightness, contrast, sepia, and colour temperature controls.