How do I make a gantt chart from my data?
Choose a local CSV, Excel, JSON or Parquet file, or paste CSV with a header row. Choose the fields in the controls to draw and edit your chart; xmetric processes the data in this browser.
No data loaded. Choose your own file or try the sample.
What does a gantt chart show?
A Gantt chart shows task spans from start and end dates on a timeline.
Definition source: Gantt chart reference. xmetric uses its own native chart engine.
What does the gantt chart sample show?
Choose Category as the task and Start/End as dates. The first sample row runs from 2026-01-01 to 2026-01-04, a duration of 3 days; it is a date difference, not an inclusive count of calendar dates.
Source: the illustrative input rows below, also supplied by Try sample data. This is an example, not a result from your file.
| Period | Category | Value | Target | Other | Start | End |
|---|---|---|---|---|---|---|
| Before | A | 12 | 20 | 3 | 2026-01-01 | 2026-01-04 |
| After | A | 18 | 20 | 6 | 2026-01-05 | 2026-01-09 |
| Before | B | 15 | 25 | 4 | 2026-01-03 | 2026-01-06 |
| After | B | 24 | 25 | 9 | 2026-01-08 | 2026-01-12 |
When should I choose a gantt chart instead of a bar chart?
Choose a bar chart for duration totals without calendar positions; use Gantt when the start and end dates matter.
| Chart | Use it for |
|---|---|
| Gantt chart | A Gantt chart shows task spans from start and end dates on a timeline. |
| Bar chart | Choose a bar chart for duration totals without calendar positions; use Gantt when the start and end dates matter. |
What limits apply to my data?
These limits apply to tabular imports, not native Power BI or Tableau report compatibility. File size and browser memory limit what xmetric can open. Group large datasets before drawing a chart.
| Limit | Current behavior |
|---|---|
| File size | 32 MiB on constrained devices; 160 MiB otherwise |
| Imported rows | Up to 3,500,000 |
| Chart marks | Up to 10,000 |
| Download | SVG chart |
Source: xmetric limits and verification record, checked 2026-10-27. These are product limits, not file-format limits.
Can I chart a CSV without uploading my data?
Yes. xmetric reads the selected file or pasted CSV in your browser. Opening and editing this local chart does not upload the file.
Which columns does this gantt chart need?
Draw task timelines from start and end dates, with durations calculated in days by the xmetric engine. Start with Task and Duration. Choose the additional series, target or date fields when the controls request them.
Can I export the chart and keep editing it?
Yes. Download SVG for a static chart, or choose Continue editing in xmetric to carry the data and selected chart into the app. Check the chart before sharing it.