Apps with 'Built-in viewer' feature
Worlds leading online storage and file sync service. You get 2GB free. Apps for all major platforms.
Google Drive is a file storage and synchronization service which enables user cloud storage, file sharing and collaborative editing.
Calibre is a free and open source e-book library management application made by users, for users. Many languages, designed around the concept of the logical book, i.e.
DBeaver - Universal Database Manager and SQL Client. DBeaver is free and open source (GPL) universal database tool for developers and database administrators.
SIMPLIFY HOW YOU WORKOne platform for secure content management, workflow, and collaborationWORK FROM THE CLOUDEasily secure, manage and share all your files
XnView is a utility for viewing and converting graphic files. XnView is provided as FREEWARE for private non-commercial or educational use (including non-profit organization).
Microsoft's Chromium based browser, rebuilt for performance, compatibility and security.
Adobe Acrobat is a family of application software and web services developed by Adobe Systems to view, create, manipulate, print and manage files in Portable Document Format (PDF).
Koofr is a safe, secure and simple way to store, backup and share your documents, photos, videos and more. It offers up to 10GB of free safe storage for your files with affordable upgrades and options to connect multiple cloud accounts
.Sketchfab is the first web service to publish interactive 3D content online in real-time without plugins.
FeedReader is a modern desktop application designed to complement existing web-based RSS accounts. Currently supported are Tiny Tiny RSS, Feedly, ownCloud News.
Bundleware
IZArc is the best freeware archive utility supporting many archive formats like: 7-ZIP, A, ACE, ARC, ARJ, B64, BH, BIN, BZ2, BZA, C2D, CAB, CDI, CPIO, DEB, ENC, GCA, GZ, GZA, HA...
A browser extension that captures web pages to local device or backend server for future retrieval, organization, annotation, and edit.