WHMCS integration of very popular developer tool available in most popular PHP frameworks PHP Debug Bar (http://phpdebugbar.com/) It adds footer line into your admin page (and yes, admin only for now) that can display information like:
Be the first to review Developers DebugBar.
The best place to start if you need help with a specific product is to contact the developer. All WHMCS Marketplace developers have both a website and support URL listed.
Initial release display information like:
After you download installation package, upload unpacked directory (nemc_debug_bar-master) into your modules/addons directory and rename it to nemc_debug_bar (remove "-master" part) and you are all ready to go.
Build, License & Distribute Your Own Apps using WHMCS
This addon allows your to add html / php to the header / footer in the admin area / admin login page / clients area
Reseller API System
This addon does a 302 redirect and sends an X-Robots-Tag header along with noindex and nofollow, which makes sure search engines aren’t allowed to index or follow the URLs.
Enabled Child Themes System for WHMCS like in Wordpress, So you can get updates without loosing your own Template / CSS / JS / Images customization (Supporting Admin & clients Area)