Free screenshot annotator — mark up images in your browser
Drop a screenshot, draw arrows, highlight bugs, and download — all in your browser. Nothing uploads.
Drop a screenshot here
Or click to browse · or paste from clipboard
Files never leave your browser — everything runs locally.
A good screenshot annotator should disappear into the workflow. Drop an image, draw what you need, hit download. WebPinch’s annotator runs entirely in your browser — your screenshots stay on your device, and the exported PNG is yours to use however you like. If you find yourself doing this often for bug reports, WebPinch can do the screenshot capture, the annotation surface, and the bug tracker in one tool.
- Pencil, arrow, rectangle, circle, and text tools
- Adjustable colour and stroke width
- Undo, redo, and clear
- Drag, paste, or click to upload an image
- 100% client-side — nothing uploads, nothing is stored
- Exports a clean PNG with no watermark
FAQ
Is the screenshot annotator free?
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Yes — it’s free and runs entirely in your browser. No sign-up, no upload, no watermark on the output.
Are my images uploaded to a server?
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No. The tool runs client-side using HTML canvas. Your image never leaves your device.
What image formats can I annotate?
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Any image format your browser can decode — PNG, JPG, WebP, GIF, BMP, etc. The output is a PNG.
Can I undo annotations?
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Yes. Use the toolbar’s undo/redo buttons or hit Ctrl/Cmd+Z.
How is this different from WebPinch?
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This tool annotates a single image you provide. WebPinch captures the screenshot and context automatically when reviewers click on a live website, then turns each annotation into a task on a Kanban board.
Liked this tool? You’ll love WebPinch.
Pin feedback on any website, capture screenshots automatically, and track everything on a Kanban board. Free to start.