The human’s life day to day activities become more easier with the internet of things technology as change i.e. smart homes, offices, cites etc. But a huge hurdle is the securing of all this data in transit through these devices. LWC (Lightweight Cryptography) provides a hopeful solution to allow an optimal balance between secure design and reduced computational overhead/memory utilization. Implementation of LWC allows secured data handling methods, helps in encryption with integrity check and privacy measures for the users. This study focuses on LWC algorithm’s for IOT and compare various algorithms to determine their compatibility in the service-limited IoT environment. This work provides an exhaustive study to point out the excellent LWC approach for diverse IoT applications concerning special safety needs and one of kind levels of statistics sensitivity, so that accurate necessities can be correctly mapped.