The implicit grant type is similar to authorization code grant type as it will be redirected to an authorization server. However, unlike the authorization code grant type, it will be redirected along with an access token instead of an authorization code. The implicit grant type does not authenticate the client and instead relies on the presence of the resource owner and the registration of the redirection URI.
The diagram below illustrates the implicit grant flow.
Support for refresh token grant - No
This grant type doesn't issue a refresh token which can be used to obtain new access tokens using the refresh token grant.
See the Try Implicit Grant topic to try out a sample of it with WSO2 Identity Server and WSO2 OAuth2 Playground.