Google has made its Nik Collection of seven adjustment plug-ins available free of charge, effective immediately.

The Nik Collection consists of Analog Efex Pro, Color Efex Pro, Silver Efex Pro, Viveza, HDR Efex Pro, Sharpener Pro and Dfine, which are compatible with Photoshop, Lightroom and Aperture. It was previously sold for US$150, with individual apps priced at US$100 but the complete collection is being offered free of charge with a single download and single installer. For more information and to download the Nik Collection, visit