WPdetector - WPdetector is a free tool that helps users find out the theme and plugins used by a WordPress website. In short, it is a theme detector and a wp plugin detector. WP Detector also shows additional information about the website and its domain.
GPLDL - 1066 GPL-licensed WordPress themes & plugins for free
WPThemeDetector - WordPress Theme Detector is a free tool that allows you to find details about a WordPress...
Blocksy - A lightningfast, innovative and supercharged WordPress theme
InspectWP - InspectWP is a website analysis tool and WordPress Theme & Plugin Detector.
LyrWP - WordPress themes / plugins / services curated.