ImageOptim - Faster web pages and apps.
IrfanView - IrfanView ... one of the most popular viewers worldwide.
Node.js - Node.js is a platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications
XnView MP - XnView is a free software that allows you to view, resize and edit your images. It supports more than 500 different formats!
Ruby on Rails - Ruby on Rails is an open source full-stack web application framework for the Ruby programming...
FastStone Image Viewer - FastStone Image Viewer is a fast, stable, user-friendly image browser, converter and editor.