An open platform for the collaborative evaluation of knowledge.
Alternatives to Annotator
Plugins below are selected for functional relevance and current directory signals. Active-install counts do not affect this ranking.
WordPress plugins with similar use cases
Compatibility and update metadata provide context, not a quality guarantee. Review each plugin’s details for your site.
PDF viewer, flipbook and editor: read, search, annotate, sign and fill in PDFs right in the browser. Free, no premium version.
Collect visual feedback on any page - clients click, annotate, screenshot and comment without leaving your site.
Powerful Babylon.js 3D engine for WordPress. Display, animate, and annotate interactive 3D models with no telemetry or tracking.
Visual, in-context feedback for WordPress. Pin, highlight and box annotations stored entirely in your own database.
Draggable sticky notes for logged-in collaborators. Leave notes anywhere on any page, anchored to page elements.
Multi-device screenshot capture, responsive previews, and markup studio for WordPress.
Invited reviewers leave visual feedback (markers, text, audio) on your live WordPress site. No screenshots needed.
Let clients click anything on your WordPress site and leave visual feedback, with Scribelo.
Visual website feedback for WordPress: clients pin comments with screenshots on any page. Whole-site review links, no login, data stays on your site.