kerayehchi is a smart online platform for renting goods and merchandise needed by people. The mission of kerayehchi is to revive the tradition of the ancients who lent their goods to each other once again. Renting allows you to make money, not by selling or losing assets, but by renting and owning them over and over again, at intervals of your choice. In this platform, by designing a rental system in the form of a website and application, people can confidently generate income as well as significantly reduce the daily cost of living by renting goods that they need temporarily. Users can consider rental as a safe haven for their source of income.Online payment, concluding an online rental agreement between the parties, payment of damages in case of an accident, receiving collateral to guarantee the return of goods are among the facilities that kerayehchi has provided for its companions. The basis of rental work is that renters register their goods for rent on the website or application and share them with other users, and tenants rent the goods they need according to the process defined in the website and application.