Beyond Compare - Beyond Compare allows you to compare files and folders.
Dark Reader - Reduce eye strain in your browser with this extension that provides a dark theme for browsing.
WinMerge - WinMerge is an open source differencing and merging tool for Windows.
Night Eye - Night Eye is a browser extension that enables dark mode on any website you visit. It does not ruin your browsing experience by simply inverting images.
Meld - What is Meld? Meld is a visual diff and merge tool targeted at developers.
Dark Mode - A global dark theme for the web