| Base of difference | REST | RESTful |
| Architecture | REST has a cacheable, client-server, stateless, layer system with a uniform interface. | All features of REST architecture along with some additional unique features. |
| Data format | When we say about data format of REST it is based on HTTP. | But when we say about data format of RESTful it is based on JSON, HTTP and Text. |
| Definitions | We mainly used REST to develop APIs which enable interaction between the client and the server. And It should used to get a piece of data when the user connects any link to the particular URL. | It is a web application which follows the REST infrastructure which provides interoperability between different systems on the entire network. |
| Web services | Here working of the URL is based on request and response model. | In RESTful working is completely based on REST applications. |
| Adaptability | REST is highly adaptable and user friendly to all business enterprises and IT. | RESTful is flexible when compared to RESTLESS web services. |
| Protocol | The protocol is strong and it inherits many security measures, which are built-in architecture layers. | It is multi-layer and has a transport protocol which makes the system less secure when compared with REST. |
| Bandwidth | REST will consume only minimum Bandwidth. | RESTful will consumes less bandwidth. |
| Cache | REST represents cacheable and non-cacheable data and displaces the non-cacheable data when not required. | The client can access cacheable information anytime and anywhere. |