mobile app ui design mockup psd

Behold! The best UI kits for web and app design—all of which just happen to be totally free.

Each of these free UI kits is stuffed to the gills with elements, icons, layouts, and other useful goodies for your designing pleasure. Whether you're mocking up an android app for a client or an ecommerce site to sell totally awesome fish calendars (looking good, Mackerel March), these free UI kits offer slick designs with a fraction of the time and effort you'd need otherwise.

To cut through the noise (and junk) on the web, we've rounded up 9 of the best UI kits available for you to download right now. To make it even easier, we've categorized these UI kits by their optimal uses—you'll see the formats they're designed for and a nice little description of why they're gonna be the perfect fit for your next world-changing project.

So take a load off, browse around a bit, and let's find the right UI kit for you.
Best all-around UI kitsMany products these days need to be capable of working seamlessly across different platforms, so why go to the effort of finding specific UI kits for each mockup you're designing? These all-around UI kits excel in doing it all, whether that's mobile, ecommerce, or desktop.

1. NOW UI kit

Format: PSD, Sketch, Studio
What it includes: 52 templates, 35 icons, and over 180 UI components

Why it's awesome: The 52 sleek template designs make creating mockups for multiple platforms effortless.

The Now UI kit is exactly what you want from a good all-around kit: lots of templates and components, fully customizable, and built on some of the most popular platforms. All of the designs in this kit have a simple and clean aesthetic, so you don't need to worry about your project looking outdated. And with this UI kit working on mobile, desktop, or tablet, it's easy to keep all of your design elements standard across devices and give everything a professional look.

2. Deck card-style UI kit

‍Format: PSD, Sketch, Studio
What it includes: 45 UI templates, 200+ UI elements, and 14 symbols

Why it's awesome: Deck's card-style design makes life so easy when converting mobile designs to desktop and vice versa.

In the Deck card-style UI kit, everything is built around flexible card templates, which can be resized or rearranged depending on the screen it's shown on. All you have to do is design a card and then slot it into a pre-made template. This feature maximizes screen space regardless of whether it's on a smartphone, tablet, or desktop.

3. FREE UI kit

Format: PSD, AI, XD
What it includes: 450+ premium assets, 1,000+ UI components, 8 categories

Why it's awesome: The sheer number of assets and components makes it easy for any project vision to come to life.

The FREE UI kit refuses to limit your design goals simply because there aren't enough pre-made components for you to play around with. With categories like ecommerce or blogging and mobile-friendly architecture, FREE has everything you need for a great all-around UI kit. FREE also does an excellent job of keeping everything organized and labeled correctly (sometimes frustrating on free kits), so it's easy for you to find the exact piece you need when you need it.

Best UI kits for desktop websites

Mobile design may be bigger than ever, but there are still plenty of reasons to design with desktop use in mind. These UI kits are specifically designed for desktop websites, ranging from a simple blog to a full-fledged ecommerce store.

4. Aware UI kit

Format: PSD, Sketch
What it includes: 50+ components in 6 categories

Why it's awesome: Aware is a purpose-built UI kit for ecommerce stores with plenty of options to display whatever you're selling.

The Aware UI kit is self-described as "modern & stylish," and we have to agree. With 50+ components, it might have slightly less than other UI kits on our list. But with all of its assets focused on the ecommerce sector, this UI kit has more than enough well-made components for your next mockup.

5. Visage UI kit

Format: PSD
What it includes: 70+ components in 7 categories

Why it's awesome: Visage is designed with ease of use and flexibility in mind, which makes it perfect for professional or personal desktop projects built on Photoshop.

The Visage UI kit makes everyone's lives easier by doing the little things right: its components are designed on a responsive grid, all the components are well-organized, and everything is resizable for easy customization.

Using Visage, you can quickly create almost any website or media platform with a surprising amount of flexibility. Visage doesn't have a bold visual design, so you have free rein to put your own distinctive touch on the project yourself.

Best UI kits for mobile

These UI kits are designed to work on both Android and iOS platforms for easy cross-platform design. If you're looking for something solely designed with iOS in mind, you can also take a look at our next section (though any of these choices will work just as well).

6. Vera Block UI kit

Format: PSD, Sketch
What it includes: 140 screens in 4 categories (with light and dark options) and 100+ components in 7 categories

Why it's awesome: It comes with 140 pre-made screens. 140! Enough said.

The Vera Block UI kit makes mocking up your next mobile app a breeze. Pick from one of their many screens, customize the looks with their pre-made components and flexible layouts, and you're ready to go. Each screen has minimalist vibes, so you can easily make an app that feels modern for years to come.

7. Blenda UI kit

Format: Figma, AI
What it includes: 30 screens, 300+ UI elements, and a free icon pack

Why it's awesome: Blenda goes with a less is more approach, giving you a beautiful design with fewer choices to agonize over.

The Blenda UI kit may not boast as many screens as Vera Block, but it more than makes up for it with the number of UI elements you can play around with. Because many of the elements are Figma variants, it's easy for you to customize Blenda UI elements for your own purposes. With the pre-made screens and customizable elements, Blenda is a compelling free UI kit for any new app design.

Best UI kits for iOS

With iPhones and iPads being as popular as they are, it makes sense that many apps are designed specifically for this market. Luckily, these UI kits are built to thrive in the Apple ecosystem.

8. Kauf Mobile UI kit

Format: PSD, Sketch
What it includes: 67 screens, 1,000 UI elements, and 5 categories

Why it's awesome: Great for making a diverse number of apps across multiple categories, like social media or ecommerce.

The Kauf UI Mobile kit should be your go-to iOS UI kit. With 67 pre-made screens and 1,000 UI elements, there's a ton to work with here. As a plus, it's easy on the eyes as well. The pre-made screens are customizable and compatible with retina displays, making your visuals pop from Apple screens with a high-quality, polished look.

9. Backpack UI kit for Adobe XD

Format: XD
What it includes: 50 screens across 7 categories with fully customizable elements

Why it's awesome: A UI kit with a clear niche: travel and social apps.

The Backpack UI kit doesn't want to be your jack of all trades. It's specifically designed with travel and social functions in mind. If that's what you're in the market for, it's going to rock your world. Each of Backpack's screens has a unique focus, which is rare with free UI kit elements. Backpack may not be right for everyone, but it might just be the perfect pick for you.

Find the free UI kit that works for you

No matter how niche your next project is, there's a perfect UI kit out there for you. Try out each of the kits on this list to see which fits your style best. Once you find the right one, you'll be set to create a consistent, beautiful UI in no time.