Jira is Atlassian's flagship issue and project tracking platform designed to help teams plan, track, and release work. It provides configurable issue types, customizable workflows, Scrum and Kanban boards, backlog and sprint planning, roadmaps, reporting, and built-in automation to reduce repetitive tasks. Jira integrates tightly with other Atlassian products (Confluence, Bitbucket), third-party tools, and exposes REST APIs and an app marketplace for extensions, enabling cross-team collaboration and enterprise-scale governance and security. Its flexibility supports software development, IT service management, and business project tracking across small teams to large enterprises.