# Client development

# Preparing for Development

To develop the applet client (the applet interface displayed within WeChat on mobile phones), you need to use WeChat Developer Tools (opens new window).

WeChat applet sample project reference file:

Senparc.Weixin SDK source file root directory/Samples/WxOpen/Senparc.Weixin.WxOpen.AppDemo/

The above sample project opens as shown below:

小程序客户端