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Ascend to new heights with Atlassian Cloud. Data Center support (excl. Bitbucket) ends on March 28, 2029. Together, we’ll make this transition a success.
Key highlights of the appJira to Jira integration - sync Jira work items across multiple Jira instances

Auto sync Jira issues with other projects
Simplify collaboration by automating Jira to Jira issue synchronization in real-time for cross-team (internal) and cross-company (external) projects. No need to manually copy, bulk clone, and update Jira issues.
Sync Jira issues two-way, no platform restrictions
Connect Jira projects between Jira Software and Service Management, whether on Cloud or Data Center. Sync unlimited Jira issues & changes in both directions, even behind strict firewalls!
Migrate to Jira Cloud while minimizing data losses
Lead a phased migration from Jira Server to Cloud and use Backbone to keep both Jira instances in sync. Reduce the risks of a big-bang migration and facilitate an incident-free transition to Jira Cloud. Learn more →
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More details
Collaborate on Jira without borders! Backbone Work Sync is the leading app for automated Jira to Jira issue synchronization across projects.
📖 Get started | 📅 Book a demo | ℹ️ Learn more
Popular Use Cases:
- Improve Jira project management →
- Streamline customer service in JSM →
- Migrate to Jira Cloud in phases →
- Sync across two Jiras – Install Backbone on one →
Highlights:
- Proven performance, scalability, & reliability - thousands of enterprise installations
- Sync unlimited Jira projects & issues, even behind strict firewalls
- Complete privacy, security, & visibility of the synced data
- Easy in-app troubleshooting
- Intuitive UI & simple setup & configuration
- Sync Jira issue data uni- or bi-directionally across Jira projects*
- Sync any type of Jira issues (task, story, bug, epic)
- Sync JSM assets and Jira worklogs
- Sync data via HTTP(S), file, & email
If you have any questions, get in touch. We'd be happy to help!
*License required on all connected Jira systems
Resources
Download
Get the .jar file downloaded to your system
App documentation
Comprehensive set of documentation from the partner on how this app works
Privacy and Security
Privacy policy
Atlassian's privacy policy is not applicable to the use of this app. Please refer to the privacy policy provided by this app's partner.
Partner privacy policySecurity program
This app is part of the Marketplace Bug Bounty program.
About Bug Bounty programVersion information
Version 5.21.4•for Jira Data Center 9.13.0 - 11.1.1
- Release date
- Dec 11th 2025
- Summary
- Bugfix release
- Details
Backbone Work Sync 5.21.4 is now available. This release includes a bug fix for syncing from data center to cloud, where the cloud instance is making use of a reverse proxy. It also fixes an issue where replies to synced comments (comment thread) on cloud did not sync back to the original project. These replies will now sync correctly in both directions.
Read the full Backbone Work Sync 5.21.4 release notes
- Payment model
- Paid via Atlassian
- License type
- Commercial