A set of Free, helpful, quality User Interface Design elements, icons and styls to design faster wireframes and create better mockup deliverables in Illustrator.

The set contains:

• GUI library – Hundreds vector elements for interface design
• Minimal UI icons set – 260 vector icons for Illustrator
• Styles library – 200 styles to apply in Illustrator

These user interface design elements can be customized easily to your own needs : you can easily resize, color or tweak their appearance.

91 Icons – a collection of open source vector icons built with Raphael Javascript Library. Each icon is a path and you can get the path string by clicking the icon.

These open source icons can play an integral part to make your website load fast.

Cool Icons Library for Prototyping

Splashy Icons – A cool icons library for prototyping containing 400+ free PNG icons.

This icons library can be used in web applications, websites, desktop software and for application prototyping.  The package comes in 16*16 px.

Previously, a post at Greepit was sharing Vector Icons for Multi-touch Screen Interfaces to aid in the design, development and implementation for multi-touch screen interfaces.

Here is a collection of Touchscreen Hand Gestures Vector Stencils for documenting touch screen interfaces. Users can use these beautiful gesture vector stencils with OmniGraffle.

These gesture vector stencils can be customized by changing:

• Object Color
• Line thickness
• Transparency
• Background color

Birdies is a set of 12 lovely Twitter icons. The icons included in the set have clean shapes and neutral colors and available in both PNG and Vector EPS format.

This Free PNG and Vector Icon set can be rescaled to any size while retaining their original details.

Charts and Graphs are extremely useful in presentations, analysis and reports. Information can be easily presented and analyzed when data is plotted into charts and graphs.

This free charts and graphs collection is in vector format and contains many chart types including:

• Pie chart
• Bar graphs
• Circle graphs
• Line charts

Being a designer, I know the importance of Icons in website design & user interface design. Many times, a layout turned to a master piece only by using few appropriate professional icons.

Today, I am presenting a Free icons collection with multiple file types like Vector, ICO, PNG, GIF & PSD.

9 Icon & PNG Cake Icons

Twitter PSD Icons

50 beautiful & creative free twitter icons in vector & png format.

Iconic is a minimal set of 114 Royalty Free Vector & PNG Icons available in 14 different colors.

Iconic is available in PNG, SVG, SWC and Omnigraffle stencil formats, which makes this icon set more flexible.

A beautifully crafted collection of 12 Free Photoshop Patterns.