In code reviews we often browse metrics, source code and reported code issues together with our customers. This leads to discussions about the current state of the code and possible improvements. First we used a bunch of shells scripts for that. In a second step we developed a simple PHP (Open Source) application helping us to do the job. Now we did the third step and rewrote that application into a React based client side (Open Source) application.
They start with an overview of why they created the tool (an evolution of the older Code Review tool) and why it was split into a frontend/backend model to provide easier pipeline integration. They then introduce the functionality in the new tool, based on a D3.js interface. A few screenshots of the interface are also included to give you an idea of how it reports its findings and the dashboard providing an overview of the findings. You can try it out by grabbing it from the project's GitHub repository.