Annotate an Image
Draw a rectangle outline with a text label on an image. Runs entirely in your browser, so your data never leaves your device.
Drop a file here, or click to browse
Files never leave your device
Output
The result appears here as you type.
How to use Annotate an Image
- 1. Load the screenshot or photo. Drop the image you want to mark up into the input pane. Screenshots of interfaces, error dialogs and dashboards are the usual suspects, and any raster format is accepted.
- 2. Position the box. Set Box left, Box top, Box width and Box height in pixels to frame the detail you are pointing at. The rectangle draws as an outline only, so the content inside stays fully visible.
- 3. Add the label and pick a color. Type a short note in the Label field and choose an Outline & label color. Red draws the eye hardest for bugs, while a calmer blue or green suits neutral documentation callouts.
- 4. Download the annotated image. Confirm in the preview that the box surrounds the right element and the label reads clearly, then save the file and attach it to your ticket, doc or message.
When to use Annotate an Image
Annotate an Image draws a labeled rectangle onto a picture, the universal gesture for 'look here'. It exists for every workflow where a screenshot alone is ambiguous: bug reports, design feedback, support replies and documentation all get sharper when the relevant region is boxed and named on the image itself.
- Pinpointing a bug in a screenshot. A Jira ticket saying 'the button is misaligned' invites questions. The same screenshot with a red box labeled 'off by 4px' around the button ends the back-and-forth before it starts.
- Design review feedback. Commenting on a mockup by describing locations in prose gets tedious. Boxing the spacing issue or the wrong icon directly on the export lets the designer see the note in context.
- Support and how-to replies. When a customer cannot find a setting, reply with their own screenshot annotated with a box labeled 'click this'. It resolves the ticket faster than a paragraph of directions.
- Highlighting data in a chart capture. Sharing a monitoring dashboard in Slack, box the anomalous spike and label it with the deploy time. Colleagues scanning the channel understand the incident at a glance.
Examples
Point out a detail
Input
image.png + red box labeled 'Note'
Output
image.png with an outlined box and label
About the Annotate an Image tool
Annotate an Image is a free online tool that works entirely inside your web browser. Draw a rectangle outline with a text label on an image. Because the processing happens on your own device, nothing you enter is uploaded, logged or stored anywhere.
This page is one of 200 Image utilities on EditSafely. Each one does a single job well, and all of them follow the same rule: your input stays on your machine.
You can shape the output with 6 settings, including Box left (px), Box top (px), Box width (px) and Box height (px), and the result refreshes the moment you change one. The finished file is put together in browser memory and saved with the Download button, so it never touches a server on the way to your disk. A worked example further down the page shows exactly what the tool produces for a real input.
Because nothing leaves your device, the tool is suitable for sensitive content such as internal documents, credentials or customer data. It also responds instantly, since every keystroke is handled on your own machine rather than by a remote API.
Frequently asked questions
Is Annotate an Image free to use?
Yes, it is completely free. All 2,658 tools on EditSafely work without an account, a subscription or usage limits.
Are my files uploaded to a server?
Everything happens locally. Your browser downloads the tool's code once, then does all the processing itself; nothing you enter is transmitted, stored or logged. You can even go offline after the page loads and it will still work.
Which files does Annotate an Image accept?
It accepts images in any common format (PNG, JPG, WebP, GIF and more). There is no file size cap imposed by a server; very large files are limited only by your device's memory.
Do I need to sign up or install anything?
No. The tool works in any modern browser on desktop, tablet or phone. There is no account to create, no extension to add and no software to install.
How do I save the output?
Click the Download button once the result is ready. The file is built in your browser's memory and handed straight to your downloads folder, without passing through a server.