The diffraction limit of light microscopes is a critical hurdle to free nanoscale imaging and analysis from bulky, expensive systems and complex analyses. We present a plasmonic grating substrate that extends light microscope image resolution in both fluorescence and brightfield modes. Enhanced spatial resolution was demonstrated by distinguishing between triangular nanoprisms and cubic nanocages with an epifluorescence microscope without the need for mathematical reconstruction. Nanoparticles were further analyzed by blinking localization microscopy, ground state depletion, and Airyscanning. Size and shape determined by these analyses compared well with values by electron microscopy. Using machine learning to predict particle orientation from detected signals and improve grating design may further improve this technique. Finally, single molecule blinking was visualized by smartphone camera, making superresolution observations readily available to a much wider audience.