Happy IMG
Image Annotation Tool

Annotate Image Online

Add text, boxes, circles, and highlights to screenshots, photos, or product visuals directly in your browser.

Private by default

Edit in the browser without sending routine image work to a server.

One editor shell

Stay in the same canvas workflow as you switch between focused tools.

Batch-ready flow

Upload a set, keep moving, and export clean output without tool hopping.

Start Here
Upload and open the editor
Free
or drag image here
Drop
Workflow

How it works

Tool pages should convert fast. The flow stays simple: upload, adjust, export, then move to the next image without relearning the interface.

Built For Search Intent

Each tool page acts like a focused landing page, but it still drops users into the same production editor once they upload an image.

01
Step
Upload the image or screenshot you want to annotate.
02
Step
Insert text, boxes, circles, or highlight blocks on the canvas.
03
Step
Adjust the selected element from the right panel.
04
Step
Export the annotated image in the format you need.
Features

Why people annotate images

Clear feedback on screenshots
01

Mark UI issues, call out steps, or highlight important areas without sending a plain unedited screenshot.

Useful for support and docs
02

Add labels and visual emphasis for product walkthroughs, bug reports, and internal notes.

Fast browser workflow
03

Upload, mark up, and export in a lightweight editor instead of opening a heavier design app.

Text and shape overlays
04

Use boxes, circles, highlights, and text notes to explain exactly what matters in the image.

Help

Frequently asked questions