Open editor

Screenshot annotation tool

Annotate screenshots online for free

Mark up a screenshot without opening a design app. Draw arrows and shapes, write labels, highlight an area, add numbered steps, or blur private information. ShotGenio keeps the annotation tools next to the screenshot editor, so you can explain the image and make it presentation-ready in one place.

Annotate a screenshot

Free to start. No card needed.

How to annotate a screenshot online

  1. 1

    Add your screenshot

    Upload an image, drop it onto the editor or capture and crop the visible page with the Chrome extension.

  2. 2

    Mark up the image

    Choose arrows, lines, shapes, pen, highlight, text, numbered steps, blur or pixelation.

  3. 3

    Style and share

    Move or restyle annotations, add a background or mockup, then export the finished screenshot.

Tools for drawing and writing on screenshots

  • Arrows and lines

    Point directly to a button, result, bug or important detail with adjustable arrows and straight lines.

  • Shapes and freehand drawing

    Draw rectangles, ellipses and freehand marks with your chosen color and stroke width.

  • Text and numbered steps

    Add short labels or place ordered number markers on tutorials, bug reports and product walkthroughs.

  • Screenshot highlighter

    Highlight the section you want a viewer to notice while keeping the surrounding context visible.

  • Blur and pixelation

    Redact email addresses, passwords, customer data and other private information before sharing.

  • Undo, redo and move

    Correct changes, select existing annotations and reposition them without starting the screenshot again.

Questions

How can I annotate a screenshot online?

Open ShotGenio, add a screenshot and choose Annotate. Select an arrow, shape, pen, highlight, text, step or blur tool, draw on the image, then export it.

Can I add arrows and text to a screenshot?

Yes. You can add arrows, straight lines, labels, freehand marks, rectangles, ellipses and numbered steps.

Can I blur or pixelate part of a screenshot?

Yes. Use blur for a soft redaction or pixelation for a block effect, and draw over the private area.

Is the screenshot annotation tool free?

Yes. You can use the annotation tools for free. Free exports include a small watermark.

Does annotation work on mobile?

Yes. The editor works in mobile browsers as well as on desktop, though a larger screen gives you more precise control.

Annotate a screenshot

See pricing: free, or $4.99 once for the Lifetime Editor.