PRO features require the SVAR Svelte Gantt PRO Edition. A free trial is available — see licensing and pricing for details.
What’s Included in PRO
Work Days Calendar
Define custom working schedules with per-day hour rules. Durations and scheduling automatically respect non-working days and hours.
Auto-Scheduling
Forward scheduling mode that automatically recalculates task dates based on Finish-to-Start dependencies when any task changes.
Critical Path
Highlight the sequence of tasks that directly determines the project end date. Supports strict and flexible calculation modes.
Slack Visualization
Visualize free and total slack on the timeline to understand scheduling flexibility alongside the critical path.
Baselines
Compare current task dates against a saved baseline snapshot. Baseline bars are rendered below each task bar.
Rollups
Display child task bars rolled up onto collapsed summary tasks so progress is visible at any zoom level.
Split Tasks
Break a single task into multiple time segments, each independently draggable and resizable on the timeline.
Vertical Markers
Add labelled vertical lines to the timeline to highlight deadlines, milestones, or any significant dates.
Unscheduled Tasks
Mark tasks with no fixed dates so they appear in the grid without a timeline bar, ready to be scheduled later.
Undo / Redo
Step backward and forward through the full edit history with configurable undo/redo actions.
Export
Export the Gantt chart to PDF, PNG, or Excel (XLSX) via a server-side export service, or import/export MS Project XML files client-side.
MS Project Import/Export
Round-trip your project data to and from Microsoft Project XML format entirely in the browser.
Export Capabilities
The PRO edition provides two complementary export pathways:- Server-side export (PDF, PNG, XLSX) — the widget serializes its current state and sends it to the hosted SVAR export service (
https://export.svar.dev/gantt/<version>). The service renders the chart and returns the binary file. - Client-side MS Project import/export — XML files are read and written entirely in the browser using the
import-dataandexport-dataactions withformat: "mspx". No server round-trip is required.