Shotwell - Shotwell is an open source photo organizer designed for the GNOME desktop environment.
digiKam - Professional Photo Management with the Power of Open Source
XnView MP - XnView is a free software that allows you to view, resize and edit your images. It supports more than 500 different formats!
Capture One Pro - The professionals’ choice in RAW image editing software with support for more than 500 cameras. Get started with Capture One today with a 30-day free trial.
Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.
Darktable - darktable is an open source photography workflow application and raw developer.