About this tool

Black Background

Why does a black background always look so darn cool? Regardless, I guess it makes sense that we have them here on Cool Backgrounds!

If you're looking for a steathly desktop image or want something clean for your new iphone backgound, we have plenty of unique black images that you won't find anywhere else. The subtle look feels luxurious but at the same time shows a sense of modernism with the particles and gradients.

The background tool on this sites reveals five of my favorite apps from dynamic particles to the ever popular Unsplash. Let us know if you find another candidate or want to contribute more dark desktop ideas!


As a sample of a few options availabe, the following list of images are ready to use for any application. To download, right click and select "Save Image As..."

Use Cases

With the increasing visual nature of the web, the background images from this site can be used for a plethora of reasons. Listed here are a few ideas to get the creative engine started.

Html color codes

Blog Post Hero Image

The image discovery problem first emerged while working on tutorials for HTML Color Codes. With somewhat dry material like HTML code, it's hard to create a compelling image that represents the actual power of that knowledge. Trianglify.js to the rescue! Utilizing the javascript library, we added our brand colors and generated a high resolution image that looked amazing. To this day we still get random emails asking us how we created that background 😄.

Cool backgrounds twitter

Social Media Banner

Nearly every social media site has a profile banner that lets you showcase an image at the top. Whether you need an image for a Facebook Group, a parody Twitter account, or even yourself, Cool Backgrounds can let you show the world your creative side.

Background wallpapers

Desktop and Phone Wallpaper

One of the primary reasons folks search for background images is to set them as wallpapers on their computers and phones. As a personal favorite, I'm using the Gradient Topography background in Black and Dark Grey—it sits stealthily on the homescreen of my iPhone.


While Cool Backgrounds is a fine resource for generating images from popular javascript libraries, the real heavy lifting comes from the library authors themselves. When it comes to customer support, Quinn Rohlf from Trianglify.js is incredibly responsive and a really smart guy to boot. Particle.js is developed by Marc Brüderlin with a wonderful API and is being actively maintained. Gradient Topography is a newly minted project by me as a response to the amazing work by the Codrops crew. And of course Unsplash is one of the best internet treasures of all time, built by the former Crew team as a side project.

Oh yea and can't forget CSS Gradient and Rellax.js which is the "cool background" that powers those sliding parallax shapes in the content section of this site!