Turn a task list with start and end dates into a Gantt timeline with a date grid, progress bars and SVG or PNG download.. Gantt Chart Maker is a free online tool from the ToolsRift Charts & Data Tools collection. It runs entirely in your browser — nothing to install, no signup, and your data never leaves your device.
List one task per line as Task, start date, end date and an optional progress percentage. Adjust the theme and labels, then download the Gantt chart as SVG or PNG.
ISO dates like 2026-03-14 are the safest because they are unambiguous everywhere in the world. Common formats such as 14 Mar 2026 also parse, and any row with a date the browser cannot read is listed as skipped so you can fix it rather than losing it silently.
Yes. Add an optional fourth column with a percentage and each bar gets a darker inner fill showing that much progress, plus the percentage printed at the end of the bar. Leave the column out and the bars are drawn as plain durations.
Completely. Project schedules often reveal launch dates, client commitments and staffing, so nothing is uploaded: the CSV is parsed in memory in your browser and the SVG is generated locally on your own device.