Oscar Admin is a popular open source WebApp template for admin dashboards and control admin panels. Oscar is a fully responsive HTML template, based on the CSS framework Bootstrap. It utilizes all of the Bootstrap components in its design and re-styles many commonly used plugins to create a consistent design that can be used as a user interface for backend applications. Oscar Admin is based on a modular design, which allows it to be easily customised and built upon.

Demo: https://themeforest.net/item/oscar-the-ultimate-bootstrap-admin-template/20324506