Local · Private · Free

Gantt Chart Maker

Plan a project timeline as a clean Gantt chart: task bars across a date axis with % complete and a today line. Export a crisp PNG or a JSON backup, all on your device.

Project name

Saved only in this browser, nothing is uploaded.

Tasks 0 tasks

Time scale

Today line % labels Gridlines

Rendered locally, nothing is uploaded.

A Gantt chart that lives on your machine

No project-management account required. Add tasks with start and end dates, assign owners, set how far along each one is, and the chart auto-scales to fit your whole project, with week or month gridlines and a line marking today. Reorder tasks by dragging, switch the time scale, then export a high-resolution PNG for a deck or a JSON file you can re-import later. Everything stays in your browser.

About Gantt Chart

Gantt Chart is a free, private productivity tool that runs entirely in your web browser. Add tasks with start and end dates, assign owners, set % complete, and the chart auto-scales to fit your whole project timeline. Because everything happens locally on your device, your data is never uploaded to a server and there is no sign-up or installation required. Switch between day, week, and month time scales, drag tasks to reorder, then export a high-resolution PNG or a JSON backup. Like every free tool by Digital Heroes, it is 100% free with no limits.

What you can do

Build a visual project timeline with task bars plotted on a date axis, color-coded by team or type.

Track progress on every task with a % complete slider and a shaded progress bar inside each bar.

See where you are today with a dashed today line that keeps your plan anchored to the current date.

Switch time scales between Day, Week, and Month views to zoom in or out on your schedule.

Reorder tasks instantly by dragging rows, and assign each task an owner for clear accountability.

Export a PNG for decks and reports, or save a JSON backup to re-import the full project later.

How to use Gantt Chart

Open Gantt Chart in your browser. No signup, no install, no upload.

Click + Add task, give each task a name, start date, end date, and an optional assignee.

Drag tasks to reorder them. Set % complete on any task and pick a bar color from the palette.

Switch the time scale (Day, Week, Month) and toggle today line, % labels, and gridlines to suit your view.

Click Download PNG to save the chart, or Export JSON to back up your project and re-import it later.

Frequently asked questions

Is Gantt Chart free?

Yes, Gantt Chart is completely free for everyone. No sign-up, no account and no usage limits.

Is it private? Are my files uploaded anywhere?

No. Gantt Chart runs entirely in your browser on your own device, so your data never leaves your computer and nothing is uploaded to a server.

Does it work offline?

Yes. This tool is a Progressive Web App, once the page has loaded it keeps working offline, and you can install it as an app from your browser.

Do I need to install anything or create an account?

No. Just open the page and start using it. Installing it as an app is optional and only adds offline convenience.

What does Gantt Chart do?

Plan a project timeline with tasks and a visual Gantt, export PNG.