Glui is the simplest way to capture, annotate and share screenshots.
Key features: • Capture a crosshair, window or fullscreen screenshot from the menu bar, or drag and drop an existing image. • Annotate with arrow, rectangle and text tool. • Instantly upload to Dropbox and get a link to share, or drag the image to any other app.
Other features: • Quick access to recent uploads in menu bar • Responsive and clean sharing page • Color management done right • Enhanced for Retina display • Zero clutter
Note: A (free) Dropbox account is required to use the upload feature.