John

This plugin enables you to manage your projects from the WordPress interface you are already comfortable with. Easily create and track the progress of projects and tasks.

WP-Trac

This plugin allows users to manage projects and tasks.

Deepak Khokhar

Surender Singh Khokhar

Best WordPress checklist plugin that allows admin to create tasks and checks to keep website up to date.
After activation, you will see a new menu item on the left in your dashboard called Checker. Go to that page and manage the tasks/checks that you need on your WordPress website. 
We will soon add recommendations to better optimize your website. These recommendation will be useful as best practices on any WP website.
Note: This plugin uses the font awesome library for icon fonts but it loads them from the plugin’s local folder. You can learn more about the font awesome icons <a href="https://fontawesome.com/" rel="nofollow ugc">here</a>
To modify some functionality, you would need to modify the files from the src folder. After making your changes, please run the following commands to build the production files: 
npm update 
npm run start

WP-Trac vs Checker