Jira is a versatile platform used by diverse groups of users, including those in IT and software development. Jira alternatives include ServiceNow for IT service management, Asana for project management, Trello for small teams using Kanban, and Zendesk for customer support. Each alternative has its strengths and weaknesses, with ServiceNow offering robust features and customization options, Asana providing a flexible project management platform, Trello's flexibility making it suitable for non-Agile workflows, and Zendesk focusing on external customer support. When choosing an alternative to Jira, consider the specific needs of your organization and use case.