ThickBox

How well this listing is tuned to rank in WordPress.org search, on the factors an owner controls. Not popularity, optimization.

Directory rank vs rivals

wp.org popularity rank over time · higher is better · when a rival's line climbs above yours, they've overtaken you

How often this plugin actually ships. A steady rhythm is the maintenance signal a single "last updated" date can't show.

Share of active installs on each version of this plugin · 86% run the current release. Green is the current release; a big slice on older versions is a user base that has stopped updating.

Refined from the date this plugin crossed into its current band.

No paid tier is visible, so we don't put a figure on revenue or sale value: that would be guessing. The install base is a real asset to an acquirer, just not one public data lets us price. A small install base leaves thin data to model from.

1. ★★★★★ riess2015

   11.1y ago

   Don’t use this plugin when u also use qode slider and carousel, totally crashed everything had to deactive for my pictures to come back

   Read on wp.org ↗
2. ★★★★★ George Lerner

   11.2y ago

   PHP Notice: Use of undefined constant thickbox_init – assumed ‘thickbox_init’ in ACCOUNTFOLDER\wwwroot\wp-content\plugins\thickbox\thickbox.php on line 185 // should be string not constant // add_action(‘init’, thickbox_init); add_action(‘init’, ‘thickbox_init’); PHP Notice: load_plugin_textdomain was called with an argument that is deprecated since version 2.7 with no alternative available. in ACCOUNTFOLDER\wwwroot\wp-includes\functions.php on line 3510 PHP Notice: Array ( [0] => Array ( [file] => ACCOUNTFOLDER\wwwroot\wp-includes\l10n.php [line] => 598 [function] => _deprecated_argument [args] => Array ( [0] => load_plugin_textdomain [1] => 2.7 ) ) [1] => Array ( [file] => ACCOUNTFOLDER\wwwroot\wp-content\plugins\thickbox\thickbox.php [line] => 171 [function] => load_plugin_textdomain [args] => Array ( [0] => thickbox [1] => wp-content/plugins/thickbox/messages ) ) [2] => Array ( [function] => thickbox_init [args] => Array ( [0] => ) ) [3] => Array ( [file] => ACCOUNTFOLDER\wwwroot\wp-includes\plugin.php [line] => 496 [fun in ACCOUNTFOLDER\wwwroot\wp-includes\functions.php on line 3517 https://codex.wordpress.org/Function_Reference/load_plugin_textdomain shows the proper usage of the function line 171 of thickbox.php should be: load_plugin_textdomain(‘thickbox’, ”, ‘wp-content/plugins/thickbox/messages’);

   Read on wp.org ↗
3. ★★★★★ Daniel Payne

   11.5y ago

   Added Javascript errors, and now my drop-down menus stopped working. De-activating this plugin made my menus come back to life. Nice plugin concept, but needs some work to be compatible with menus.

   Read on wp.org ↗
4. ★★★★★ alaskajohn

   12.3y ago

   I can’t understand why folks are giving thickbox such a low rating. I love it. My only complain is that it doesn’t automatically set the WordPress “AddMedia” functionality to add Thickbox in attachments. Currently I just add class="thickbox" to image links manually. Additionally, I use this in combination with YouTube SimpleGallery to great effect.

   Read on wp.org ↗
5. ★★★★★ itsjustathought

   13.1y ago

   Nice lightbox

   Read on wp.org ↗

Automated install-time checks, tested on PHP 7.2.16 · WP 5.3

Growth timeline

Install-tier crossings we have observed, and how long each tier took to outgrow

1. 2025-11-21 300+ → 200+ down after 1 days in tier
2. 2025-11-20 200+ → 300+ up after 4 days in tier
3. 2025-11-16 300+ → 200+ down after 449 days in tier
4. 2024-08-24 400+ → 300+ down after 273 days in tier
5. 2023-11-25 500+ → 400+ down after 194 days in tier
6. 2023-05-15 600+ → 500+ down after 155 days in tier
7. 2022-12-11 700+ → 600+ down

Competes with

The plugins that solve the same job, ranked by shared tags then reach, closest match first. The letter on the right is each plugin's health grade (A best, F worst).

• S Social Photo Fetcher 1K+ installs · 3.8★ · 3 shared tags B
• Responsive Lightbox & Gallery 100K+ installs · 4.9★ · 2 shared tags A
• Lightbox & Modal Popup WordPress Plugin – FooBox 100K+ installs · 3.9★ · 2 shared tags B
• FancyBox for WordPress 30K+ installs · 4.5★ · 2 shared tags A
• Lightbox with PhotoSwipe 20K+ installs · 4.8★ · 2 shared tags A
• M Multi Image Metabox 7K+ installs · 4.4★ · 2 shared tags D

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Drop a live Pulse card for ThickBox into a readme, a review or a deck. It updates itself.

ThickBox: 200+ active installs, 2.6★ (5 reviews). Plugin Pulse (WP Mayor), as of 2026-08-31. https://plugins.wpmayor.com/plugin/thickbox