# Offline Mode
To cater to the specific needs of construction sites, WeBIMSync provides an offline mode. Users can pre-load project data when the network is stable and operate normally without an internet connection upon arriving at the site. Below are the setup and operation steps:
After logging into WeBIMSync, enter the project menu and 1 right-click on the project you want to use offline.
Click the 2 [
] button in the upper right corner of the screen, and the system will automatically pre-load the project data to the local device.
The original [
] button will change to the [ 
] icon, indicating that offline operation is available.When the network connection is restored, click the [
] button, and WeBIMSync will automatically upload the annotations and other data created during offline use to the server.