1. 7-zip7-Zip is a open source file archiver program for windows. It supports packing and unpacking of 7z, ZIP, GZIP, BZIP2 and TAR format files and supports onlu unpacking of RAR, CAB, ISO, ARJ, LZH, CHM, Z, CPIO, RPM, DEB and NSIS. It provides better compression ratio than WinZip for ZIP and GZIP formats. It is an alternative to programs like WinZip
2. Audacity: Audacity is free, open source software for recording and editing sounds.Audacity can be used to record live audio, convert tapes and records into digital recordings or CDs, edit Ogg Vorbis, MP3, and WAV sound files. cut, copy, splice, and mix sounds together.
3. Blender:Blender is a open source free software for creating 3D animations. Blender can be used for modelling, UV unwrapping, texturing, rigging, skinning, animating, rendering, particle and creating interactive 3D applications. Blender has robust features et similar to programs like 3ds Max and Maya.
4. ClamWin: ClamWin is a Free Antivirus for Windows 98/Me/2000/XP and 2003. ClamWin is a good alternative to commercial softwares like Norton, McAfee etc. Clamwin features include High detection rates for viruses and spyware, Scanning Scheduler, Automatic downloads of regularly updated Virus Database, Standalone virus scanner and right-click menu integration to Microsoft Windows Explorer, and Addin to Microsoft Outlook to remove virus-infected attachments automatically.
5. eMule:eMule is a open source peer to peer file sharing (P2P) client tool.
6. Feedreader:Feedreader is free desktop RSS aggregation tool. “Feedreader automatically downloads updates from your favorite Web sites. So, it eliminates the need for you to constantly monitor multiple Web pages, while allowing you to immediately identify and retrieve new articles”
7. Filezilla:FileZilla is a free, open source FTP client for Windows. It supports FTP, SFTP, and FTPS protocols. It has all the essential features required for a FTP client. The main features of FileZilla are Ability to resume Uploads/Downloads, Site Manager with folders, Keep Alive system, Timeout detection, Firewall support, SOCKS4/5 and HTTP1.1 Proxy support, SSL secured connections, Upload/Download Queue, Drag&Drop.
8. Firefox:The best cross platform supported web brwoser available on the net, it doesn’t need any introduction and many of you might be using. The wide range of Firefox Add-On’s make this the most powerful browser for all types of users. Firefox is an alternative to Microsoft Internet Explorer.
9. GIMP:GNU Image Manipulation Program (GIMP) is free open source raster graphics editor for manipulating photos or images. GIMP is an excellent software and alternative to expensive photoshop, it is used for photo retouching, image composition and image authoring.
10. hugin:hugin is a open source easy to use cross-platform panoramic imaging tool. Using hugin you can assemble a mosaic of photographs into as complete immersive panorama, stitch any series of overlapping pictures and much more.