
Monosnap
Snagit
LightShot
ShareX
Greenshot
CleanShot X
Shottr
Free browser-based image annotation tool. Add arrows, text, shapes, mosaic blur to screenshots. No signup, no install — everything runs in your browser.

Instant visual diffing between websites

Website, pricing, platforms and company facts side by side.
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| Website | annotate.puremark.app | diffee.me |
| Pricing | — | |
| Company | 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


PureMark Annotate is a free, browser-based image annotation tool designed for developers, QA engineers, and anyone who creates documentation or bug reports. Key Features Arrows, text, shapes — Add annotations to any screenshot instantly Mosaic blur — Hide sensitive information with one click Pen,...
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What each product offers, as listed by its team.


Possible disadvantages
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An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
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Walkthroughs and reviews on video.
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Monosnap is a comprehensive screenshot taking software system that provides users with a fast and accessible way to take screenshots whenever they want. Read more about Monosnap.
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ShareX is a free and open source program that lets you capture or record any area of your screen...
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Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.
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Capture your Mac’s screen like a PRO ⚡️
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