Adobe Photoshop and Adobe Elements include a red-eye reduction tool and other options to change eye color. Layers can be added over the image to add additional color without affecting the image underneath, in this case, the eye that requires editing, and can combine blend layers together to create realistic changes to a photograph. Adobe's programs can be expensive but they offer a free 30-day trial period.
Picasa 3 is free image-editing software provided by Google. Although it cannot edit eye color as effectively as Adobe Photoshop or expensive editing software, it can change the hue of a photograph and reduce eye glare. Users can experiment with different editing tools on Picasa to create different eye color tones; it is especially useful for users looking to slightly change eye color without spending money on expensive software.
FotoFlexer is an online, free, photo editing software application with tools to change eye color on photographs or other pictures. Like Adobe Photoshop, layers can be added and blended together to create different colors and tones. Other effects are also available, such as changing the contrast of a picture or converting a photo to a pencil drawing. Photos and pictures can be directly uploaded to the website and downloaded once edited.