In this repo you can find the last releases of my legacy plugins for Atlassian Confluence.
These plugins are not maintained and supported anymore, but you can still use them if you want without a license.
Download bootstrapvisuals-3.3.0.jar from the bootstrapvisuals folder. In your Confluence Server or Data Center instance, navigate to the "Manage Apps" page and manually upload the jar file there.
Download chartjsconf-1.6.0.jar from the chartjsconf folder. In your Confluence Server or Data Center instance, navigate to the "Manage Apps" page and manually upload the jar file there.
Download htmltoolkit-2.8.0.jar from the htmlauitoolkit folder. In your Confluence Server or Data Center instance, navigate to the "Manage Apps" page and manually upload the jar file there.
I hope the plugins will still be of use in your environment.
George Lewe