1. Chrome: https://www.google.com/chrome/

2. Cốc Cốc: is a product of Cốc Cốc – a technology company founded by Vietnamese engineers. This browser is a whole new experience “tailored” specifically to the everyday needs of Vietnamese people.

3. Handbrake: Handbrake is a video transcoder that lets you convert multiple types of video files into standard formats and also reduce the file size so that you can cram more movies on your devices. Handbrake can also batch process so you can transcode multiple files at once.

4. Launchy: is a free cross-platform utility designed to help you forget about your start menu, the icons on your desktop, and even your file manager. Launchy indexes the programs in your start menu and can launch your documents, project files, folders, and bookmarks with just a few keystrokes!

5. Calibre: is an open source ebook manager that can convert simple documents and PDFs into ebooks. It can also convert ebooks from one format to another so you can create the supported format for your device.

6. LibreOffice: is a powerful office suite – its clean interface and feature-rich tools help you unleash your creativity and enhance your productivity. LibreOffice includes several applications that make it the most powerful Free and Open Source office suite on the market.

7. Sumatra PDF:  is a free PDF, eBook (ePub, Mobi), XPS, DjVu, CHM, Comic Book (CBZ and CBR) reader for Windows.

8. Clementine: is an open source music player that is also capable of playing music stored on remote file servers. Clementine has many rich features such as pulling lyrics, artist info and song info from online sources.

9. VLC: is a free and open source cross-platform multimedia player and framework that plays most multimedia files as well as DVDs, Audio CDs, VCDs, and various streaming protocols.

10. Inkscape: is a powerful graphics editor, seen as a free of cost alternative to Adobe Illustrator. The greatest advantage of Inkscape is support for Scalable Vector Graphics (SVG), an open XML-based W3C standard, as the native format.

11. 7 zip: is a file archiver with a high compression ratio.

12. iDempiere: is open source ERP system.

13. Blender: is an extremely powerful app for creating 3D works –  3D animated films, visual effects, 3D applications and even video games.

14. Audacity: is a nonlinear sound editing application that lets users edit audio through a very simple interface. Audacity supports external plugins to expand its features and functionality, and as a result you get a very powerful sound editor. It can also record sound from multiple sources.

15. Bonita BPM: is an open-source business process management and workflow suite.

16. Talend Open Studio

17. Teiid: is a data virtualization system that allows applications to use data from multiple, heterogeneous data stores.