What annotation tools are available?

This tool provides three annotation tools: Rectangle (draws a stroked box by clicking and dragging), Arrow (draws a directional line with an arrowhead by clicking start and end points), and Text (places a text label at a clicked position).

Can I undo an annotation?

Yes. Use the Undo button to remove the most recently added annotation. The canvas is re-rendered from the original image each time.

Does the tool support transparent backgrounds?

The annotation layer is rendered directly onto the uploaded image. If your image has a transparent background (PNG), the canvas will show a white background beneath the annotations.

Image Annotator

Upload an image and draw rectangles, arrows, and text labels on it, then download the annotated result.

Upload image

Color

Upload an image to start annotating

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FAQ

What annotation tools are available?: This tool provides three annotation tools: Rectangle (draws a stroked box by clicking and dragging), Arrow (draws a directional line with an arrowhead by clicking start and end points), and Text (places a text label at a clicked position).
Can I undo an annotation?: Yes. Use the Undo button to remove the most recently added annotation. The canvas is re-rendered from the original image each time.
Does the tool support transparent backgrounds?: The annotation layer is rendered directly onto the uploaded image. If your image has a transparent background (PNG), the canvas will show a white background beneath the annotations.

Upload any image and annotate it directly in the browser. Select from three annotation tools: rectangle (draws a colored stroke box), arrow (draws a line with an arrowhead), or text label (click to place a text annotation). Choose the annotation color before placing each element. All annotations are rendered onto the canvas. Download the finished annotated image as a PNG.