ListeKolay is a free and open-source desktop utility that allows users to quickly list and filter the contents of any folder.
Cost / License
- Free
- Open Source
Platforms
- Windows
- Linux




Preview is described as 'Native macOS tool for viewing, annotating, and editing images and PDFs, offers cropping, resizing, markup tools, page rearrangement, and export to multiple formats' and is a very popular PDF Reader in the photos & graphics category. There are more than 100 alternatives to Preview for a variety of platforms, including Windows, Mac, Linux, Android and Flathub apps. The best Preview alternative is SumatraPDF, which is both free and Open Source. Other great apps like Preview are Okular, IrfanView, XnView MP and nomacs.
ListeKolay is a free and open-source desktop utility that allows users to quickly list and filter the contents of any folder.




Read Right is a free, lightweight PDF viewer for small portables. Documents are automatically rotated and scaled to fullscreen, so they can be read with the laptop held sideways like a book.
5DFly Images to PDF converter is a batch processing converter to convert images into PDF to significantly improve the images PDF conversion efficiency.

Fileloupe is a lightweight, incredibly high performance media browser for macOS. You can quickly browse photos, watch videos, read PDFs and preview documents all within the same window. It's like the Finder's Quick Look window, only better.




ImageForge provides you with a set of powerful tools for painting and editing images, photos or other graphics.Create and edit images, acquire pictures from your scanner, digital camera or other Twain-compliant device, apply special effect.




A modern, electron and nodejs based image viewer for Mac, Windows and Linux.


This program allows you to convert between PDF and other formats. PDF is free format for reading, but not for creation and exporting. So many people are looking for solution to convert their documents to PDF, or convert PDF to other formats.



QIV is a very small and pretty fast gdk/Imlib image viewer. Runs on Linux, Solaris(SunOS), FreeBSD and HP-UX.
Features:
moving & zooming image in fullscreen mode. setting image as x11 background (centered,tiled,stretched..) with user settable background col.




ImageOne is a quick and easy-to-use photo and image management tool which integrates the functions of image file organization management, browsing view and batch conversion, is the all-in-one management center for your photos and image files.




PDF Reader - Editor, Scan & TTS by Dev_Software is a mobile solution designed to scan, edit, and listen to your documents in one place.




GLiv is an OpenGL image viewer. Image loading is done via Gdk-pixbuf bundled with GTK+-2.6, rendering with OpenGL, and the graphical user interface uses GTK+ with GtkGLExt.


