Hi. If you ever wondered why there is no proper timetracker for JIRA worklogs: now it's there. Chronos Timetracker is free, open-sourced, crossplatform desktop application for tracking time. It provides minimalistic JIRA interface for most of your needs. We also provide a solution for worklog reports. Chronos Timesheets is a JIRA Plugin for vieweing your or your team's work progress. We have ability to capture screenshots and activity levels.

Learn more about Chronos: https://chronos.web-pal.com/

Source code: https://github.com/web-pal/chronos-timetracker

Thanks for your time