When you are designing the interface of a website, software or other products, you will need some basic elements of the User Interface (UI). If you want to create a prototype for your projects, you can use wireframing kit and UI design kits to give great ideas and do not lose yourself in the details.
In this article I have compiled 30 useful web and mobile user interface kits. All in PSD form that allows you to adjust according to your needs.
WebWireframeKit
This is a free web wireframing kit for planning the layout of web projects easily and quickly. And, the kit comes in 2 color themes: black and white.
Web.without.words
A visual playground where designers take popular sites and reconstruct them in a wireframe.
Wireframes Magazine
Wireframes Magazine is dedicated to all things wireframing and prototyping. It has a huge library of downloadable templates, samples and UI tools, and even a section for inspiration
iPad GUI Kit in PSD
This is iPad GUI Kit in Photoshop, making it easy for you to go nuts with your mock-ups and client presentations.
Android 1.6 Wireframe
This is a beautiful Android wireframe . Use this toolkit to wireframe Android-based apps and websites
Google Android PSD
A stencil set for Google Android prototyping.
Google Android GUI PSD
GUI elements of Android, built using vectors to scale.
Maemo 5 GUI in PSD
This file contains GUI template elements for the Maemo platform
iPhone 4 GUI PSD
GUI PSD kit for creatives who design for the retina display
iPhone GUI Elements
This file contain beautiful iPhone elements. All graphics are layered Photoshop files.
Palm Pre GUI PSD
This set contains a PSD to help designers pitch and develop polished concepts using Photoshop.
Quommunnication Stencil Kit
Contain PSD file with common design elements for sketching and wireframing like form elements, colors, Advertising units, RSS feed icons, grids and browser windows .
Apple iPad fully editable PSD
Apple iPad in PSD format. Every element you see is editable via vector masks, and everything is scaleable.
RIM Blackberry PSD
Complete PSD file with layer styles, this has 135 layers of Photoshop goodness.
Facebook GUI PSD Kit
Complete prototyping of Facebook application UIs and Facebook fan pages
Browser Form Elements PSD
PSD set for Firefox 3 for Mac and another for IE7 on Vista.
Web Browser Elements
useful kit contains pull-down menus, check boxes, buttons,radio buttons, text fields, input fields, and scroll bars, all in an easily editable PSD file.
UI Element Pack
Contains 19 elements including loading bar, default and clicked-state buttons, button toggle, icons for “Close,” “Next” and “Previous,” paging icon and slider in PSD Format
Button Set
This set contains all of the following elements in three distinct styles: glossy, satin/light gradient, and one-color. The satin/light gradient set is available in 7 different colors (which you’ll find all of in the psd file)
Web-Safe Area Templates
Web-safe area browser PSD templates with following resolutions: 640×480, 800×600, 1024×768, 1280×960 and 1600×1200 pixels
Treasure Chest
This PSD layered file, most of whose files are fully editable, contains more than 100 elements for website design.
iPhone Wireframe Templates for Sketching
Two layouts are available, both in PDF and Visio (VSD) formats for quick iPhone mockups.
Flex Darkskin PSD UI
Control of different browsers for designers
PSD library of controls in browser interfaces of Mozilla Firefox, Opera, Internet Explorer and Safari.
Web Elements Kit (PSD) For Designing Faster
This huge set of various web elements with 17 easy to modify modules, with each module comes with four different color options
Modern Web UI Set
This free Web UI Set has everything included in the PSD file in well organized in folders, and fully editable using vector layers in Photoshop
Web Designer Toolkit
Web UI Wireframe Kit
Facebook GUI
DeviantART ID PSD Kit
This file contain 15 professionally designed, fully customizable templates include MINI and Original ID templates.