The Laravel News site has a post introducing a tool you can use in your Laravel applications to help debug issues and performance, the Laravel Debug Bar.

The Laravel Debugbar by Barry vd. Heuvel is a package that allows you to quickly and easily keep tabs on your application during development. With a simple installation and powerful features the Debugbar package is one of the cornerstone packages for Laravel. The debugbar is already updated for Laravel 5 and I wanted to show you all the great features it includes.

The post includes instructions to get the debugbar installed (via Composer) and add it to your Laravel providers list. They walk through the basics of its features and screenshots of each. He also links you to the project documentation to provide more detail on each of the features.