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.
Taptalk - Personal video and photo messaging
Bluegrams Screen Ruler - A lightweight and configurable ruler tool for Windows Desktop.
ElasticHQ - Tool for ElasticSearch management and monitoring.