I have two websites online that display a full page mobile optimised image on desktop devices for a couple of seconds until the browser recognises the fact that I'm on a desktop computer and replaces the image with the higher resolution version. Not really optimal.
I previously had a stack that produced two versions of an image and loaded the low-res image on mobile devices, but, more often than not, the low-res would display on a tablet in portrait mode. Not really optimal.
What if there were a solution to load and display an image that has been optimised for each breakpoint? Well, actually there is now a stack that can do that – Srcerer from Shaking The Habitual!
Srcerer queries the browser width when a page is loaded and can deliver up to eight different images at various sizes with each image optimised for each screen width it is being viewed on. Srcerer even takes Retina displays into consideration and will deliver an optimised 2x image.
Using Srcerer means that your site's visitor only downloads (and pays for) the image that has been optimised for her/his device.
This does, of course mean that you are saddled with extra work for your site. You will need to produce, optimise and link the eight separate images manually, but there's workarounds for that too. Srcerer will automatically generate the code for linking to a folder of optimised images and an app called Retrobatch (a super efficient node-based batch image processor from Flying Meat Software) will allow you to program a workflow to automate the process (Stuart will even supply a pre defined workflow), However a Photoshop Droplet can do the same and it's even possible to resize the images via Preview.
Now personally, I'd be happy if this were the limit of Srcerer's abilities. But Stuart wasn't ready to stop programming there and has added properties to the stack that other image stacks simply don't have; Srcerer can produce cards with seven different shadow effects, Srcerer can add image captions, hover effects and blends and it can even add parallax effects. What more would you want from an image stack?
Stuart has given detailed descriptions of each of Srcerer's settings on the homepage, so I'm not going to reinvent the wheel, but instead would recommend that you take a look at the Srcerer product page.
Srcerer is not only the most advanced stack to date for delivering optimised images for each viewport, but it is also an otherwise extremely versatile image stack that I can highly recommend!
Until 9th November 2018 you can get a 25% discount with the code: sth-ninja-srcerer
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