User interface design involves a lot of creativity, inspiration, testing and motivation along with the people-skills necessary to communicate effectively with clients. In a general sense, they act as symbols that allow easier and smoother communication between the webpage and the person interacting with it.
Here’s a showcase of 25 free and useful GUI Sets for your reference. While compiling this list, it’s always a possibility that I missed some other great resources. Feel free to share it with us. You may be interested in the following posts: Excellent vCard WordPress Themes, Best Advertising WordPress Plugins and Free Celtic Fonts To Download.
1. Awesomeness UI Widgets

2. Pillow UI

3. Polaris UI Free

4. Futurico – User Interface Pack

5. Mega UI Pack

6. Got Wood

7. Big GUI pack: Apollo

8. Free KICK-ASS GUI PSD

9. LinkedIn iPad re-design

10. Dashboard UI Elements PSD

11. Black Dashboard Interface

12. Media Black UI Kit

13. Ruthenium GUI Kit FREE PSD

14. Solid UI Kit

15. UI Kit – Free download

16. Minimalistic UI kit the Color Google +

17. Flat UI Kit

18. Cool Ui Kit

19. Dark Chest

20. Primera Free UI Kit

21. Heads Up Display UI Kit

22. Web GUI Kit

23. Beige Web Elements

24. Blue Milk UI Kit

25. Impressionist UI Free

Nice collection of Free GUI Sets for Web Designers.
Good Work .
I like this post very much.
Thanks Admin