SteadyGantt
The Gantt chart for Jira that never touches your data without asking. Drag freely, review the exact diff, sync only what you confirm — and undo in one click.
Install from the Atlassian Marketplace → Try the live demo →
The full app with sample data. No install, no signup.
Why another Gantt app?
Because too many timeline tools rewrite dates on install, sync changes you never meant to make, or lose your structure in an update. SteadyGantt is built around one promise: Jira stays untouched until you say so.
The safety model
- Read-only by defaultOpen it, explore, zoom — nothing is written.
- Drafts firstEvery drag is a draft, shown next to a ghost of the original.
- Exact diffReview old → new for every change, apply only what you check.
- One-click undoAny sync can be reversed to the previous values instantly.
What you get
Full hierarchy & dependencies
Epic → Task → Subtask nesting, dependency arrows from issue links, epic envelopes derived from children.
Fast at any size
Canvas rendering with a performance budget enforced in CI. First paint in about a second, instant reopen from local cache, smooth with thousands of issues.
Views that remember themselves
Zoom, scroll, collapsed groups, panel width — restored exactly as you left them, on any device.
Hour-level to month-level zoom
Plan the week in hours or the quarter in months, with a today marker and weekend shading.
PNG export
One click to a clean image of your timeline for slides and status reports.
Nothing leaves Atlassian
No external servers, no third-party calls, no analytics. Eligible for the Runs on Atlassian program.