WPMUdev by alvarogois
http://premium.wpmudev.org/blog/powerful-must-have-tools-for-every-wordpress-developer/
WordPress.org plugins
Advanced Custom Fields (ACF®)
by WP Engine
updated today
59.7 million downloads
2 million active installs
Rating: 90 / 100 (1416 ratings)
User Switching
by John Blackbourn
updated 22 days ago
4.6 million downloads
200,000 active installs
Rating: 98 / 100 (235 ratings)
Theme Check
by Simon Prosser
updated 505 days ago
2.4 million downloads
20,000 active installs
Rating: 96 / 100 (195 ratings)
Regenerate Thumbnails
by Alex Mills
updated 633 days ago
22 million downloads
1 million active installs
Rating: 92 / 100 (391 ratings)
Developer
by Automattic
updated 2718 days ago
202,159 downloads
1,000 active installs
Rating: 94 / 100 (18 ratings)
Monster Widget
by Automattic
updated 2736 days ago
158,256 downloads
1,000 active installs
Rating: 100 / 100 (8 ratings)
Woocommerce Monster Widget
by alispx
updated 3518 days ago
4,849 downloads
20 active installs
Rating: 100 / 100 (2 ratings)
Custom plugins
There are no custom plugins in this collection.