To help you get started with flat design, we have compiled some free flat PSD Web UI kits. All of them are editable in PSD format and mostly covering all of the basic UI elements such as textfield, checkboxes, radio buttons, buttons, drop down menu and some other cover extensive list of elements.

White Stripes UI Kit – Free PSD

Free Flat UI Kit

Freebie: Flat User Interface Kit (Vector PSD)

Free PSD UI Kit

Flat UI kit (psd)

FLAT UI ELEMENTS

Free Ui Kit

Free PSD Web UI kit that includes a set of beautiful components, which can be used to create websites and applications.

Free Download: Flattastic UI kit

Flat UI Kit (Free PSD)

Free Download: Long Shadow Flat UI Kit

Flat Design UI Components

Freebie PSD: Flat UI Kit

Ui Kit 2

Flatic UserInterface Kit

Freebie: The Flat Design UI Pack (PSD)

Awesome UI Kit

Metrosyle Web UI

Free “LightFlat” UI

Flatilicious User Interface Free

Polaris UI Kit + Linecons Icon Set (AI, PDF, PNG, PSD, SVG)

Flat dashboard. Free UI kit PSD

Modern Touch UI Kit