Online check-in software is an application or system thatallows guests to complete the check-in process digitally and online before arriving at the hotel.

It includes data registration, preference selection, electronic signature, document upload, advance payment, generation of virtual keys and facilitates communication with hotel staff. 

Some of the advantages of using online check-in are the following: Time savings, comfort and convenience, contactless experience, personalization and information collection, and operational efficiency among others.