Toolkit Hub
Screenshot Annotator
Capture or upload a screenshot, annotate with shapes, arrows, and text, and export as PNG. Powered by markerjs2. All processing is local.
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What is the Screenshot Annotator?
A screenshot annotator adds arrows, boxes, highlights and captions on top of an image so the person reading it knows where to look. It is the difference between a bug report someone can act on and one that starts with "where exactly?".
Frequently asked questions
Can I use this for screenshots of internal or client systems?
Yes, and it is the reason to prefer a local tool. The image is loaded and edited in your browser and exported straight back to your device, so nothing is uploaded to a third party.
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Screenshot Annotator is one of 7 tools in Utilities on Toolkit Hub, a free collection of browser-based utilities. It requires no account and no installation. Browse all tools.