Zeplin is a connected space for product teams where they can share designs, generate specs, assets and code snippets, tailored for iOS, Android and Web.To get started using Zeplin together with Jira,

• Enable Zeplin through Atlassian Marketplace.
• Head to a Jira issue and enable Zeplin by clicking the button up top.
• Connect your Zeplin account and start attaching screens, sections or projects from Zeplin!

Once you attach resources from Zeplin to Jira issues, in Zeplin’s web and desktop apps you’ll also start seeing Jira issue numbers right next to those resources. This lets you quickly jump to Jira issues directly from designs in Zeplin and more importantly, filter designs based on Jira issues—letting you find the specific design you need to work on right away.