FeedbackSpark's answer
Range of powerful features designed specifically for digital product teams:
Back Market - the refurbished (super) market
JPEGView - JPEGView is a small and fast viewer/editor for JPEG, BMP, PNG, GIF and TIFF images.
Tracksuit - Beautiful, always-on, and radically affordable brand tracking for modern consumer brands. Tracksuit is the new way to measure, understand and communicate the value of brand.
HoneyView Viewer - HoneyView is a fast and lightweight image viewer that supports various formats, including JPG, BMP, GIF, PNG, PSD, DDS, UFO, and ICNS.
Typeform - Create beautiful, next-generation online forms with Typeform, the form & survey builder that makes asking questions easy & human on any device. Try it FREE!
XnView MP - XnView is a free software that allows you to view, resize and edit your images. It supports more than 500 different formats!