Photoshop has a few mosaic filters but if you’re looking for a different one with more flexibility, Mosaic is what you’re looking for. You can generate square, hexagon, and octagon mosaics with more adjustable settings than the ones in Photoshop. The interface looks a little dated and installation requires entering your name & email for a serial number (even though it’s a free plugin, it’s required). If you keep the effects simple, you can create some great looking mosaics.
Some of the newest Photoshop plugins are layout and file handling plugins made for web designers. The most astonishing one is CSS3ps; this plugin works better than the one offered in Photoshop CS6.1 and is a must-have.
If you’re a web designer and you don’t have this plugin, download it now! CSS3Ps turns your layer styles into CSS styles and the results are amazing. It can generate shadows, gradients with transparencies, and more. This plugin will speed up your coding time and works better than the new “Copy CSS” feature in Photoshop CS6.1. Installing is through Adobe Extension Manager and to use it, you go to Window > Extensions > CSS3Ps. Select the layers that you want to generate the CSS code for then click on the CSS3Ps logo in the CSS3Ps panel. It will open your browser to their website that will generate the website for you. The downside to this compared to Adobe’s version is that you have to wait around 15-20 seconds before you get your code – but that’s worth it for the better results.
If you want to create grids based on a grid-system, it can be a lot of work. Thankfully there’s GuideGuide that solves this problem. Create your own guides using your own measurements and save/load them for later use. Installation is done through Adobe Extension Manager.
As you may know, Photoshop’s slicing system isn’t the easiest to use. Here’s where Cut&Slice me comes in; organize your layers in the way it tells you to then export them all by clicking a button. Designing mobile apps? Cut&Slice me even lets you export at different resolutions for the never ending list of mobile screen resolutions. This plug-in will save you lots of time that you can spend on more valuable tasks – such as eating cookies. This extension is easily installed through Adobe Extension Manager.
Creating favicons compatible with Internet Explorer is a 2-step process; save the image as JPG/GIF/PNG image then use one of the many websites that converts your image into a favicon. With this plugin, you no longer have to do that because you can save your image directly as an ico file.
Know another freeware Photoshop plugin?
I hope there's a plugin here that you'll find useful. While looking through almost every freeware Photoshop plugin, there were many that we could not include because they didn't support Photoshop CS6 or duplicated an effect that could already be easily done in Photoshop. If you know of a freeware plugin that we missed, please let us know in the comments below - Thank you!