TJClip

Screenshots that are already on your clipboard.

Press ⌘9, drag over anything on any screen, draw an arrow. Paste it wherever you need it.

Grab, mark, paste. Nothing else in the way.

Always copied
The whole screen goes to your clipboard the moment you press ⌘9. Select a region and that replaces it. Every arrow and every undo updates it again.
Mark it up in place
Arrows, lines, boxes, circles, pencil, blur and text, right on top of the selection. Drag anything you drew to move it.
Every screen at once
All your displays dim together. Start dragging on the one you want and the others step aside.
Stays on your Mac
No account, no uploads, no tracking. Save a PNG wherever you like when you want a file.