iconseditor.com is built using pure HTML5 and JavaScript with no server side code.

If you're interested in how I did this, take a look at my blog where I'll be discussing some of the techniques I used.

Please direct any support/feature requests to paul.keating@
journeyintocode.com
WARNING! The icon export feature does not work correctly with Internet Explorer. IE cannot detect the image type and only gives the option to save as png or bmp. This site has been successfully tested in current versions of FireFox, Chrome and Opera for Windows. WARNING! This site has been successfully tested in current versions of FireFox, Chrome and Opera for Windows only. No guarantee can be given for the results on other platforms, browsers and browser versions.
Here's your icon. Right click it and save as.
Uniform
Fill
Uniform Fill
Frames
16 x 16 24 x 24 32 x 32 48 x 48 64 x 64 256 x 256
Custom: Width Height
Pencil
Fill
Eraser
Rectangle
Ellipse
R
G
B
A