Do you use Markup.io?
#1 Developer Tools product of the year
More recipients →What is Markup.io?
Streamline collaboration & feedback on websites, images, PDFs, and videos. Boost review & approval by 80% using clear, contextual comments. Upload your content, drop a comment, and share for review. Yep, it’s that simple.
*Unlimited users on any plan.



Markup.io tech stack
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MarkUp
Add any URL to MarkUp to enable real-time commenting directly on a website. Invite your project stakeholders and manage all of your feedback in one place. Unlimited projects, unlimited collaborators, unlimited opinions. All for free.

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