Kaizen - Kaizen is an ElasticSearch GUI for Windows, Mac and Linux, written in JavaFX as a cross-platform desktop application.
Meazure - What are the dimensions of that image? How big is this window?
elasticsearch-gui - AngularJS Client for ElasticSearch as a plugin.
ScreenRuler - ScreenRuler lets you measure objects on your Ubuntu desktop using six different metrics.
LogFusion - Log fusion is a software that helps you to display and monitor your log files in real-time by relying on this lightweight application that features a massive range of useful function.
Bluegrams Screen Ruler - A lightweight and configurable ruler tool for Windows Desktop.