Top Alternatives to Viewnior

IrfanView is free image viewer application for Windows.

XnView is an efficient multimedia viewer, browser and converter.

XnView MP is the enhanced version of XnView Classic. It is a powerful cross-platform media browser, viewer and converter.

Preview is the image viewer and PDF viewer of the macOS operating system.

JPEGView was a popular image viewer for Mac OS.

Nomacs is a free, open source image viewer, which supports multiple platforms.

Xee is an streamlined and convenient image viewer and browser.

Imagine is an image and animation viewer for Windows.

Geeqie is a lightweight Gtk+ based image viewer for Unix like operating systems.

Eye of GNOME is the official image viewer for the GNOME desktop environment, where it is also known as Image Viewer.

Free Opener opens a large variety of files without any hassle.

feh is an X11 image viewer aimed mostly at console users.

Mirage is a fast and simple GTK+ image viewer. Because it depends only on PyGTK, Mirage is ideal for users who wish to keep their computers lean while still having a clean image viewer.

GPicView is a simple and Fast Image Viewer for X. screenshot.

Universal Viewer is an advanced file viewer for wide range of formats.

PhotoQt is a simple, yet powerful and good looking image viewer, written in C++/Qt, published as open-source, and completely free.

Ristretto Image Viewer is an application that can be used to view, and scroll through images.

Image Eye is a specialized image viewer, made for the sole purpose of viewing images as quickly and practically as possible.