Markup Tool

Image Annotator

Draw, highlight, add text, circles, and pointers to screenshots locally in your browser.

Drag & drop your screenshot or Browse
Supports PNG, JPG, WEBP, BMP up to 10MB

Markup Tools

Upload an image to start annotating.

FAQ

Image Annotator Questions

Learn more about how our client-side markup tool works.

Is there an Undo button?

Yes. The Annotator saves a chronological history list of all vectors and annotations you draw. Clicking "Undo" will safely strip the last drawing action from the canvas. Clicking "Clear All" will remove all markups and reset back to your original screenshot.

What is the "Highlight" tool?

The Highlight tool uses a semi-transparent yellow/color stroke (50% opacity) which draws behind/on top of content so that text stays legible while highlighted, similar to a physical marker.

Does this tool support text annotations?

Yes. Simply select the "Text" tool, write your message in the text markup input field, and then click directly anywhere on the loaded image canvas to place the text stamp. You can adjust its color and font size dynamically.