Best annotation plugins for WordPress

The most popular annotation plugins for WordPress in November 2026, in WordPress.org’s own popular order, which follows active installs. Hypothesis leads with 200+ active installs, ahead of Side Matter (100+) and Noted Visual Feedback (100+). All 21 plugins tagged “annotation” are below, with figures from WordPress.org that update every day.

Installs aren’t everything: a recent release, a “Tested up to” that matches the current WordPress, and support threads that get resolved show a plugin is looked after. Open any plugin for its downloads, rank history and alternatives.

Research this niche or see all plugins.

Top 10 annotation plugins

1.
Hypothesis
The most installed annotation plugin, with 200+ active installs. Rated 4.9 from 7 reviews, updated 11 months ago. Tested only up to WordPress 6.9.0.
2.
Side Matter
100+ active installs. Rated 4.6 from 13 reviews, last updated 12 years ago. Tested only up to WordPress 3.7.41.
3.
Noted Visual Feedback
100+ active installs. Only 3 reviews so far, updated 5 months ago. Tested only up to WordPress 6.9.11.
4.
WP Pic Tagger
10+ active installs. No reviews yet, last updated 16 years ago. Tested only up to WordPress 3.0.5.
5.
LocalFeedback
10+ active installs. Only 1 review so far, updated 1 day ago.
6.
Image Annotator
10+ active installs. No reviews yet, last updated 10 years ago. Tested only up to WordPress 4.6.30.
7.
Live Video Annotation
10+ active installs. No reviews yet, last updated 14 years ago. Tested only up to WordPress 3.4.2.
8.
Annotator
10+ active installs. Only 1 review so far, last updated 14 years ago. Tested only up to WordPress 3.2.0.
9.
Scribelo
Fewer than 10 active installs. No reviews yet, updated 1 week ago.
10.
Claraeliz Team Notes
Fewer than 10 active installs. No reviews yet, updated 6 months ago. Tested only up to WordPress 6.9.11.