Slack Jira Integration - Easily keep issues moving right from Slack
Marvel for JIRA and Confluence - Embed designs & interactive prototypes into JIRA+Confluence
Agile Docs - Interact with Jira like a Google Doc
JXL for Jira - The power of Jira with the familiarity of spreadsheets
66Analytics - Self-hosted analytics, heatmaps & session recordings.
TimeCamp for Jira - Track time on any issue without leaving Jira ⏰