Axoio HexStudio 2006
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. Edit, Cut, Copy, Paste, Insert. ... Offset format(Hex,Decimal,Octal). ... Delete hex, Print, and export to Txt. ... Decimal,HEX comparative Table. ... Decimal conversion. ... Friendly interfacial,Easy to operate. ... Automatic Software Update. ... Fast search function.
http://www.axoio.com/download/setup_hexstudio.exe - 2Mb - Download - Screenshot

Color Cop
Color Cop is a multi-purpose color picker for web designers and programmers. It features an eyedropper, magnifier, variable magnification levels, 3 by 3 and 5 by 5 average sampling, snap to websafe, color history, and a 42 color complementary palette. ... It has color code support for HTML Hex, Delphi Hex, PowerBuilder, Visual Basic Hex, and Visual C++ Hex. ... Color Cop will convert RGB decimal values to Hexadecimal color codes.
http://www.prall.net/tools/colorcop/colorcop-setup.exe - 314Kb - Download - Screenshot

Groovy Hex Editor
Groovy Hex Editor is a tool for editing binary formats. I've paid particular attention to making it colorful and easy to use and tried to give it a cool looking color scheme (hence the name "groovy" hex editor). You can also downgrade it to a "standard" windows color scheme if thats more to your... You can toggle the display between hex and decimal, and there is a built in inspector that easily lets you see the hex, decimal, and binary equivalents of a group of bytes at once. ... There's even a changelog that lets you keep track of what modifications you've made to the current file.
http://www.sb-software.com/hexeditor/sbhexd15.exe - 1Mb - Download - Screenshot

Hex Workshop
The Hex Workshop Hex Editor is a set of hexadecimal development tools for Microsoft Windows, combining advanced binary editing with the ease and flexibility of a word processor. With Hex Workshop you can edit, cut, copy, paste, insert, and delete hex, print customizable hex dumps, and export to... Hex Workshop supports drag and drop and is integrated with the Windows operating system so you can quickly and easily hex edit from your most frequently used workspaces. ... An Intergrated Structure Viewer allows you to view and edit data in the most intuitive and convenient way.
http://www.bpsoft.com/downloads/hw32v423.exe - 4Mb - Download - Screenshot

Hex Editor Delphi 5 Control
The Hex Editor Control is a powerful tool allows the user to viewing and editing any sort of binary data files in hexadecimal, decimal or binary form. It has been designed to be used inside VC++, VB or Delphi applications and on web pages as well. ActiveX and Delphi 5 versions are available.
http://elra-co.virtualave.net/hexeditd.zip - 151Kb - Download - Screenshot

Hex Editor ActiveX Control
The Hex Editor Control is a powerful tool allows the user to viewing and editing any sort of binary data files in hexadecimal, decimal or binary form. It has been designed to be used inside VC++, VB or Delphi applications and on web pages as well. ActiveX and Delphi 5 versions are available.
http://elra-co.virtualave.net/hexeditx.zip - 291Kb - Download - Screenshot

ColorPix
Color codes are show as the cursor is moved in the ColorPix window. A cursor click displays the color code in web Hex and decimal Red, Green, Blue, along with the color compliment. The ColorPix screen can be pasted from the clipboard or read from a file. ... ColorPix is an essential utility for web page development. ... Sucessive clicks save the pixel colors in a list with user descriptions for review or printing.
http://WindowsUtilities.com/download/SetupColorPix.exe - 2Mb - Download - Screenshot

Quick Number Base Converter
Quick Number Base Converter is a little application that sits in the windows system tray and when you click on it, allows you to quickly convert numbers between decimal, hex, binary, octal, etc. It's a simple little tool, designed for those handy times when you need to convert numbers between... type a hex number, see what RGB color it corresponds to). ... It also converts numbers to and from windows colors (i. ... This software is freeware with no limitations, no expiration, and no disabled features.
http://www.sb-software.com/baseconverter/sbqnbc11.exe - 585Kb - Download - Screenshot

KidsMath
This is a small calculator that will stay on top all the time while your working. Converts Decimal to Hex, Binary, and returns Ascii characters. All keys have tool tip text to easily find keyboard shortcuts.
http://home.comcast.net/~jlebr549/KidsMath.msi - 527Kb - Download - Screenshot

RGBSlider
RGBSlider is used to view and edit the variation of individual and combination of Red, Green and Blue Colors and luminance-chrominance according to NTSC standard. Simply move the sliders or enter values in text fields in hexadecimal (0-FF), normalized (0-1) or decimal (0-255) format and view... You can save created colors in File in Hex, Normalized or Decimal format with your comments for later use. ... Java Run Time Environment (JRE) is required to run this software. ... You can use the trail version free for 30 days evaluation.
http://www.geocities.com/mak2000sw/rgbslidersetup.zip - 287Kb - Download - Screenshot