Jenkins plugins are add-ons that extend the functionality of Jenkins. There are hundreds of plugins available, which provide integration with a wide range of tools and services. Some common Jenkins plugins include:
Git plugin: Provides integration with Git version control system.
Maven plugin: Provides integration with Apache Maven build tool.
Pipeline plugin: Allows you to define your build pipeline as code.
Docker plugin: Provides integration with Docker containers.
Ansible plugin: Provides integration with Ansible playbook.
Slack plugin: Allows you to send notifications to Slack channels.
These are just a few examples, but there are many more Jenkins plugins available that you can use to customize Jenkins to meet your specific needs.