1. Sumatra PDF is a slim PDF/DjVu/EPUB/XPS/CHM/CBR/CBZ/MOBI viewer for Windows.

  2. Data Crow is the ultimate media cataloger and media organiser.

  3. Evince is a document viewer for multiple document formats: PDF, Postscript, djvu, tiff, dvi, XPS...

  4. Foxit Reader is a free and light-weight multi-platform PDF document viewer.

  5. Alreader.com - new perspective on reading e-books.

  6. Okular is a universal document viewer based developed by KDE.

  7. GTmetrix is a free tool that analyzes your page's speed performance. Using PageSpeed and YSlow, GTmetrix generates scores for your pages and offers actionable recommendations on how to fix them.

  8. Unlimited books, audiobooks & comics. Unparalleled discovery. Any device. $8.99/month

  9. Great Software to organize your DVDs, Blu-Rays, Games, etc.

  10. Read your comics the way you want. Fast navigation, auto scrolling, auto rotation, dynamic zooming, manga mode, full screen, multi screen, multi tab. Get it for free now! Read More ยท ComicRack for Android.

  11. Lucidor supports e-books in the EPUB file format, and catalogs in the OPDS format.

  12. Sigil is a multi-platform WYSIWYG ebook editor. It is designed to edit books in ePub format.