Free tool · no sign-up

Image Annotator

Upload a design, mockup, or screenshot and mark it up with arrows, boxes, text, and freehand lines — then download it to share. Free, in your browser, and your image never leaves your device.

Upload a design or screenshot to annotate

Then add arrows, boxes, and notes · everything stays on your device

How to use it

  1. 1Click Upload image and choose the design or screenshot you want to annotate.
  2. 2Pick a tool — arrow, pen, box, or text — choose a color and width, then draw on the image.
  3. 3Use Undo to step back, then Download PNG to save the annotated image and share it.

When you hand off feedback on a design, words alone are slow: "the button near the top, no, the other one." Annotating the image directly — an arrow to the exact element, a box around the spacing issue, a note explaining the change — removes the ambiguity. A good image annotator turns a screenshot into clear, specific feedback in seconds.

This free tool runs entirely in your browser. Upload a mockup, a Figma export, or any screenshot and add arrows, rectangles, freehand pen strokes, and text labels in any color. Everything stays on your device — nothing is uploaded — and you can download the marked-up PNG to drop into Slack, a ticket, or an email. It is made for designers and reviewers who explain their work and want the feedback to be unmistakable.

Annotating a saved image is perfect for asynchronous feedback. But when you are presenting live — sharing your screen while you talk through a design — you want to draw on what is actually moving on screen, not a snapshot. That calls for a live, on-screen drawing overlay.

FAQ

Is this image annotator free?
Yes, free with no sign-up. Your image is processed in your browser and never uploaded.
What can I add to the image?
Arrows, boxes, freehand pen strokes, and text, in several colors and widths. You can undo, clear, and download the result as a PNG.
Can I annotate live while screen sharing?
This tool marks up a saved image. To draw live over any app while you present, use Limelight — its freehand drawing works over your whole screen.
Does my design get uploaded anywhere?
No. Everything happens locally in your browser, so your design stays private on your device.

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