Gutenberg 11.7.1

Does Gutenberg work with WordPress 5.8.1 and PHP 7.4.8? A smoke test was performed on .


No PHP errors, warnings or notices
No JavaScript exceptions
All test pages loaded successfully
No resource errors
Looks good! No problems were detected.

Memory usage: 592.94 KiB
The average PHP memory usage increased by this amount after activating by the plugin.

Page speed impact: insignificant.
The plugin didn't make the site noticeably slower.

WordPress version5.8.1
PHP version7.4.8
MySQL version8.0.21
PHP memory limit256M
Plugin Info
Last updated
Active installs 300,000+ page

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Pages 4

Plugins ‹ Test site — WordPress

Page screenshot: Plugins ‹ Test site — WordPress
URL /wp-admin/plugins.php?plugin_status=all&paged=1&s
Requested URL /wp-admin/plugins.php?action=activate&plugin=gutenberg%2Fgutenberg.php&plugin_status=all&paged=1&s&_wpnonce=ab6dbd4a05
Aspect after-activation
HTTP status 200
Load time 0.709 s
Memory usage 3.55 MiB
JS errors None
Resource errors None


Page screenshot: Gutenberg
URL /wp-admin/post-new.php?gutenberg-demo
Requested URL /wp-admin/admin.php?page=gutenberg
Aspect menu-item
HTTP status 200
Load time 2.996 s
Memory usage 6.32 MiB
JS errors None
Resource errors None

Gutenberg → Experiments

Page screenshot: Gutenberg → Experiments
URL /wp-admin/admin.php?page=gutenberg-experiments
Aspect menu-item
HTTP status 200
Load time 0.427 s
Memory usage 3.42 MiB
JS errors None
Resource errors None

Test site – Just another WordPress site

Page screenshot: Test site – Just another WordPress site
Aspect front-page
HTTP status 200
Load time 0.340 s
Memory usage 3.6 MiB
JS errors None
Resource errors None


URL Load time Memory usage
Inactive Active Change Inactive Active Change
/wp-admin/index.php0.491 s0.487 s-0.004 s3.08 MiB3.57 MiB+ 496.14 KiB
/wp-admin/edit.php0.277 s0.318 s+0.041 s3.11 MiB3.6 MiB+ 496.7 KiB
/wp-admin/post-new.php1.547 s2.428 s+0.881 s5.27 MiB6.31 MiB+ 1.04 MiB
/wp-admin/upload.php0.510 s0.532 s+0.022 s3.03 MiB3.45 MiB+ 428.12 KiB
/wp-admin/options-writing.php0.254 s0.221 s-0.033 s3.02 MiB3.43 MiB+ 413.54 KiB
/wp-admin/media-new.php0.864 s0.303 s-0.561 s3.01 MiB3.43 MiB+ 429.91 KiB
/wp-admin/edit-tags.php?taxonomy=category0.367 s0.305 s-0.062 s3.04 MiB3.52 MiB+ 494.08 KiB
/wp-admin/post-new.php?post_type=page1.055 s0.863 s-0.192 s5.26 MiB6.3 MiB+ 1.04 MiB
/wp-admin/options-discussion.php0.325 s0.317 s-0.008 s3 MiB3.42 MiB+ 430.05 KiB
/wp-admin/edit-comments.php0.376 s0.327 s-0.049 s3.04 MiB3.53 MiB+ 494.66 KiB
/0.570 s0.288 s-0.282 s2.91 MiB3.6 MiB+ 705.84 KiB
Average 0.603 s0.581 s-0.022 s3.43 MiB4.01 MiB+ 592.94 KiB

Code Statistics

Note: Third-party libraries and minified JS/CSS files are excluded from these statistics where possible, so the numbers you see here may be lower than those reported by other tools.

Language % Lines of code Comment lines Files
Total 178,935 60,888 514

PHP Code Analysis | More results »

Lines of code 14,075
Total complexity 2,654
Median class complexity 24.0
Median method complexity 2.0
Most complex class WP_Theme_JSON_Gutenberg
Most complex function WP_REST_Menu_Items_Controller::prepare_item_for_database()
Classes 22
Methods 217
Functions 366


Things that the plugin adds to the site. This section is not intended to be comprehensive. The test tool only looks for a few specific types of added content.

Options wp_options 1

PHP Error Log

The log file is empty.

See also: All tests for this plugin, How to Hide Gutenberg Admin Menus