XnRetro is a free program that allows you to apply vintage camera effects to your photos directly from your desktop.
Users can choose between 20 colors, 15 light effects (e.g., bokeh, leak), and 28 frame borders. They also have the ability to adjust things like brightness, contrast, gamma, saturation, exposure, red/green/blue balance, noise, vignetting, and light opacity.
Happy about the result? Share on Flickr, Picasa, Facebook, Imgur, and Tumblr. You can also send the picture by email!
XnRetro is available for Windows, OS X, and Linus. To install it on your computer, visit http://www.xnview.com/en/xnretro/.