Annotate Image Online Free
Highlight, box, arrow, text, or blur parts of a screenshot — private in your browser, no upload.
Drop a screenshot or image
or
Paste with Ctrl+V / ⌘V · images never leave your browser
How to Markup a Screenshot
Add image
Drop, select, or paste a screenshot from your clipboard.
Annotate
Highlight, box, circle, arrow, text, or blur sensitive spots.
Download
Export PNG for crisp screenshots — ready to share or attach.
Frequently Asked Questions
Does annotating upload my screenshot?
No. Drawing and export use the Canvas API in your browser. Your image never leaves your device.
What markup tools are included?
Highlight (semi-transparent), rectangle, ellipse, arrow, text label, and blur/redact for sensitive areas.
Can I undo a mistake?
Yes. Use Undo for the last shape, or Clear all to remove every annotation and start over.
What can I download?
PNG (default, sharp for screenshots) or JPEG. Annotations are flattened into the image.
Does it work on phones?
Yes. Draw with your finger. Sticky preview keeps the canvas visible while you pick tools.
Free Online Screenshot Annotator
Site95’s annotate image tool is built for daily screenshot markup: call out a bug, highlight a UI control, or redact an email before you share. Everything runs in your browser — no account and no upload.
Highlight, arrows, and blur
Use a translucent highlight for emphasis, boxes and circles for framing, arrows for direction, text for short notes, and blur to hide names or numbers.
Related tools
Need a tighter frame first? Try crop image. Shrink the file with compress image, or cut the subject out with remove background.