The old "Nik Collection 2012" (the last version Google offered for free) is still floating around on various archive sites. It does not require a key. Note: It often crashes on modern versions of Photoshop or newer operating systems like macOS Sonoma or Windows 11.
: A single license typically allows for activation on up to three personal computers (Mac or PC), provided it is not run on more than one at a time. Common Activation Issues Color Efex Pro 4 Activation Key
If you previously owned a version of the Nik Collection, you may be eligible for upgrade pricing rather than paying the full retail price. system requirements are needed for the latest version of Color Efex? The old "Nik Collection 2012" (the last version
Color Efex Pro 4 offers numerous advantages for photographers and digital artists. Here are some of the key benefits: : A single license typically allows for activation
: Click "Activate" while connected to the internet to authorize your license. DxO User Guides Common Activation Issues Setup and Installation – Nik Collection Guidelines