1)   Quick Number Base Converter 1.1
Quick Number Base Converter is a small utility application that sits in the windows system tray. When you need to converter between decimal, hex, binary, etc -- just click the icon and the converter pops up. This software is freeware.

 2)   Axoio HexStudio 2006 5.0,61116
HexStduio is the first Hex Editor tool, you can edit, cut, copy, paste, insert, and delete hex, print, and export to Txt,HexStudio you can supports drag and drop,The friendly interfacial energy causes you rapidly easily to edit hex, in work area.

 3)   DataRelate 1.2
Compare data storage units and capacities of popular storage media. Compare data rate units, and speeds of hard disks, peripherals, LAN and WAN channels. Convert Token Ring/Ethernet addresses. Instantly convert between decimal, hex and binary numbers