Seer Alternatives
Seer is described as 'This is a quick look tool for Windows. Acts just like the one in OS X , but Seer is more powerful and faster' and is an app in the os & utilities category. There are more than 10 alternatives to Seer for Linux, Mac, Windows and Linux Mint. The best alternative is QuickLook, which is both free and Open Source. Other great apps like Seer are Preview, Eye of GNOME, Xviewer and Viso.
Seer alternatives are mainly Image Viewers but may also be PDF Readers. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Seer.Bring macOS “Quick Look” feature to Windows.
Preview is a simple and elegant application by Apple for viewing and working with images and PDF documents.
Eye of GNOME is the official image viewer for the GNOME Desktop environment. With it, you can view single image files, as well as large image collections. The Eye of GNOME supports a variety of image file formats.
Xviewer is a simple image viewer which uses the gdk-pixbuf library. It can deal with large images, and zoom and scroll with constant memory usage. Its goals are simplicity and standards compliance. Xviewer is installed by default in Linux Mint.
Viso is a beautiful minimal image viewer for MacOS. Features a non intrusive UI that allows you to get the most viewing experience out of your images.
By default, macOS doesn't provide previews and thumbnails for WebP, a modern image format providing superior, lossless and lossy compression for images on the web. WebPQuickLook fills this gap by allowing you to see previews and thumbnails of .webp images on your Mac.
eom or the Eye of MATE is a simple graphics viewer for the MATE desktop which uses the gdk-pixbuf library. It can deal with large images, and can zoom and scroll with constant memory usage. Its goals are simplicity and standards compliance. Eye of MATE is a fork of Eye of GNOME.
Quick Eye is a quick look application for Windows. Just press the space bar to quickly preview files. This software is also recommended for people who are used to macOS.
Quick Eye vs Seer opinions
nadinenbOffers a right-click experience to previewing files (inside the Quick Eye menu)
Scoopy quick inside manipulation of windows folders with excessive (optional?) features but useful preview on paid version. The website is up to date (Nov 2018).
Gloobus-preview is an extension of GNOME designed to enable a full screen preview of any kind of file. It lets you view files so quickly without having to open them in their normal software.
Discontinued
Last update to the project was in 2013.