Pixelformer!

IcoFX is an 51 awards winning icon editor. It is an all-in-one solution for icon creation, extraction and editing. It is designed to work with Windows XP, Windows Vista, Windows 7 and Macintosh icons supporting transparency.

GrafX2 is a bitmap paint program inspired by the Amiga programs Deluxe Paint and Brilliance. Specialized in 256-color drawing, it includes a very large number of tools and effects that make it particularly suitable for pixel art, game graphics, and generally any detailed graphics painted with a mouse. The program is mostly developed on Linux and Windows, but is also portable on many other platforms.

BeCyIconGrabber is a small utility to view icons and cursors of any sizes that are contained in EXE, DLL, ICL, OCX, CPL, SRC, ICO and CUR files. The icons/cursors can be saved either individually as an icon, cursor, bitmap, png file or collectively within resource libraries.

mtPaint is a painting program which Mark Tyler developed from scratch so he could easily create pixel art and manipulate digital photos.

Pixelsque's goal is to be as simple as possible, while still retaining many powerful features. It works like any standard pixel art editor, with a pen, eraser, and shapes. Pinch zoom and two finger drag can be used to move around the image from anywhere. Lesser-used functions such as save/open/new, and others can be found in the menu, saving valuble screen space on phones, and allowing easy access on tablets. It fully supports all Android devices from low-end phones to high-end tablets.

RealWorld Icon Editor is a complete solution for icon authors offering multiple ways for creating of XP, Vista and Mac icons and for managing icon libraries.

JDraw is a pixel oriented graphics editor designed especially for small to medium-sized pictures used to decorate web pages. It is completely written in Java, simple to use and saves (animated) GIFs, ICOs and PNGs.

GConvert icon toolkit: create, edit, extract, manage and convert icons of any size and color depth. Full support for Windows Vista and XP icons, manage icons in ICL and DLL files, convert from/to other image formats

@icon sushi is an image to icon converter that supports the mask editor and the creation of Windows XP 32bit/Windows Vista format icons.

Create Vista icons with Toolset's Icon Editor. Locate and extract hundreds of hi-resolution, 256x256 icons in your Vista installation. Create icons for all Windows platforms. This suite of icon tools includes four integrated components that excel in their specific areas.

IconLover is a powerful, yet easy to use icon editor for making your own icons for any operating system, including Windows, Mac OS, UNIX/Linux and iPhone.

IconDeveloper is a program that makes it very easy to create your own Windows icons. Intead of trying to include a drawing package, IconDeveloper instead allows users to just import images made by other programs and turn them quickly and easily into icons.

.ico editor for Windows 8 and Windows RT

X-Icon Editor, create high resolution icons from your own browser