Auto FX Free is a collection of 10 free Photoshop plugins (you don't need Photoshop to use them): Focal Zoom, Light Brush, Lighten and Sharpen, Mood Lighting, Soften Details, Vitality, Dreamy Photo, Mosaic, Abstract Edges, Photo Border.
There's no marketing trickery with the download or installation. There's no registration required, you don't have to hand over your email address, there are no stupid restrictions or "upgrade now!" nag screens.
The install adds a program to your system called "Auto FX Free", which enables the plugins to be used stand-alone.
Launch it, open an image (JPG, PSD, PNG, BMP, TIFF) and choose your preferred plugin from the "Select AFX Effect" menu.
A panel displays the settings for each plugin. Choose Focal Zoom, for instance, and you're able to set the position of the effect, the opacity, adjust lighting effects, and customise the results with a brush.
Filters may be combined, and you can save the finished image as a JPG, PSD, PNG, BMP or TIFF file.
Please note: the Download link takes you to the product page. Scroll down, choose your operating system and click "Download" to get the installer.