Toolkit for working with and mapping geospatial data
JavaScript-Based Molecular Viewer From Jmol
eGPXviewer is a 3D GPX track viewer
A lightweight, cross-platform image manager
Nik plugins on Ubuntu standalone or with Picasa3
A modern, electron and nodejs based image viewer for Mac, Windows
Simple viewer app for most Booru Sites, coded in Qt C++
A fanmade app that can download and read touhou fanworks.
Image browser/file picker