I see that

<https://charts.gooddata.com/>

is the proper endpoint to do:

helm repo add gooddata <https://charts.gooddata.com/>
helm pull gooddata/gooddata-cn --untar=true

In order to review the code of the helm chart itself. Is it possible to view this chart on gooddata.com website without download it?

Hello, we only publish the final chart packages. The chart package contains all the necessary information, however. We may consider exposing the helm chart in git repository, if there will be a strong need to do so, but we have no plan for it at this moment.