Is there project import/export option in sonarqube web console

That’s correct.

… or higher and contain all of the plugins with the same versions as the source instance.

Beside that, there are more requirements, the documentation has all the details.

The target instance can have additional plugins and languages that aren’t in the source instance, but not the other way around. If your source instance has plugins that aren’t in your target instance, either remove them and reanalyze your project or add them to your target instance.

Both source and target instances must have:

  • The exact same SonarQube version.
  • The same custom metrics.
  • The same custom rules.