Extending Jira applications
There are a ton of ways you can extend Jira to help you and your team get more done. Integrate with code repositories and chat tools; get Atlassian Marketplace apps for automation, charting, and time tracking; or create your own apps for Jira. They're all ways you can enhance Jira and make it and even better fit your team.
For information on installing or enabling existing apps, check out the Managing add-ons page.
To learn about creating your own apps for Jira, take a look at the Jira Cloud developer documentation. To understand what's possible when developing apps for Jira, and to get some inspiration, take a look at Extending the Jira Cloud user interface.