Microsoft PowerToys | Microsoft Docs

Microsoft PowerToys is a set of utilities for customizing Windows 10. Utilities include ColorPicker (click anywhere to grab a color value), FancyZones (shortcuts to position windows into a grid layout), File Explorer Add-ons (preview SVGs or Markdown files), Image Resizer (resize one or many images with a simple right-click), Keyboard Manager (remap keys or create your own shortcuts), PowerRename (bulk rename using search and replace), PowerToys Run (Alt + Space to launch apps), a Shortcut Guide, and more to come.

Source: Microsoft PowerToys | Microsoft Docs