Flameshot

Flameshot is a versatile, open-source tool designed for taking screenshots and adding markups with ease. It supports various capture modes, including full screen, selected area, or specific windows. After capturing, you can immediately edit the image using its comprehensive annotation features, such as drawing, adding text, or pixelating sections for privacy. Being open source, it is community-driven, transparent, and free to use, making it a reliable choice for individuals and teams who value customization and control over their software tools.