1)   Hex Editor Pro 1.00.0025
Hex Editor Pro is a hexadecimal editor that allows an average PC user to quickly edit files, by providing him with intuitive interface and powerful tools. Unlike other hexadecimal editors, Hex Editor Pro features binary editor that can edit bits.

 2)   Free Number Base Converter 2.0
The Number Base converter is a tool which converts numbers from one base to another such as binary,decimal,hex,octal. The program is quite simple so even if you are a beginner you can use it without any trouble.