GifSplitter can split gif animation to image file(s) list. Then, you can select any frames of the gif animation, and modify them as you like. Also, GifSplitter will create a .mifl file which can be used in Magic ASCII Studio (http://www.xoyosoft.com
Many downloadable ZIP archives have DIZ and NFO files included within them. GetDiz is a freeware Notepad replacement which can display ASCII art correctly while maintaining an incredible speed, ease of use and small size.
NFOpad is a small, fast and flexible combined nfo viewer and text editor. It is a clone of Microsoft's Notepad but with extra settings and support for nfo files. The file extension is used to determine whether to use an ANSI or ASCII font.
Kaboom converts code pages of text files, e.g. from shift-jis into UTF-8 and vice versa. It supports Windows, DOS, IBM, ISO, ASCII, ISCII, Macintosh and UNICODE code pages. Kaboom can read and write byte order marks (BOM) and is very usefull for ever
Disk Viewer allows users to display hard-disk data by individual sectors (in Hex code or ASCII). Sectors can be copied and exported to files. Really useful when doing a "low-level" disk investigation. Portable as it uses a single exe file
View, Modify and Analyze your Hexadecimal Data and Binary Files of any Size. Free Hex Editor Neo is a large files optimized freeware editor for everyone who works with ASCII, hex, decimal, float, double and binary data