Image Annotator
Upload a screenshot or photo and mark it up with arrows, shapes, freehand drawing, text, and blur or pixelate regions. Full undo and redo, PNG export — all in your browser.
Drag and drop an image here, or
About this tool
This annotator runs entirely in your browser: the picture is decoded with the File API and drawn to a canvas on your own device, and nothing is ever uploaded. Every mark is stored as an operation and replayed onto the canvas in order, which is what makes undo, redo, and delete-last exact rather than lossy.
The blur and pixelate tools read the pixels already on the canvas, so hidden detail is genuinely gone rather than covered by a shape. When you are happy with the result, save the flattened image as a PNG.
- 100% free — no account needed
- Runs in your browser
- Nothing is uploaded
Frequently asked questions
Is Image Annotator really free?
Yes. Image Annotator is completely free on PureBrowser — every feature, with no account, no trial, and no credit card.
Does Image Annotator upload my data?
No. Image Annotator runs entirely inside your browser, so anything you type, paste, or open stays on your own device.
Do I need to sign up or install anything?
Neither. There is no account and nothing to download — open the page and Image Annotator is ready to use on desktop or mobile.
Does Image Annotator work offline?
Once the page has loaded, yes. All of the processing happens locally in your browser, so it keeps working without a connection.
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