How do I make a Gantt chart online?

Add each task as a row with a label, a start date, and an end date in the editor. The timeline updates live as you type, then click download to save it as a PNG or SVG. There's no signup and no watermark.

Can bars show progress?

Yes. Give any task a percent from 0 to 100 and its bar draws a darker filled portion for the completed part. Leave the percent blank and the bar stays a solid block, so a plan can mix done and not-yet-started tasks.

Do I have to use dates?

No. Start and end accept ISO date strings like 2026-01-15 for a real calendar axis, or plain numbers such as a day or week index for a generic timeline. The axis labels adapt to whichever you use.

Can I color bars by team or owner?

Yes. Add a color to any task and that bar uses it, while tasks without one fall back to the shared bar color. The sprint preset shows this off, coloring each workstream, which is an easy way to group a plan by team, owner, or phase.

Can I download the Gantt chart as PNG or SVG?

Yes, both are free with no watermark. SVG gives you a crisp vector you can scale or edit, and PNG is a high-resolution raster ready to drop into a slide, doc, or social post.

Can I generate Gantt charts automatically via an API?

Yes. Save your chart as an Imejis template, mark the gantt component dynamic, and POST fresh tasks to one endpoint to render the same timeline on every call. It's the only Gantt chart tool with a matching image API.

Is the Gantt chart maker free?

Yes, it's completely free in the browser with no signup and no watermark, and PNG and SVG downloads are unlimited. The matching image API has a permanent free tier of 100 calls per month.

Free Gantt Chart Maker

List your tasks with a start and end date, set progress, and download a clean Gantt timeline as PNG or SVG. Color bars by team, switch to dark, no signup, no watermark.

Tasks

Task	Start	End	%

Start and end take an ISO date like 2026-01-15 or a plain number for a generic timeline. Leave % blank for a solid bar.

Background

Bar color

Progress fillsGridlines

Tip: the Sprint by team preset gives each bar its own color. Add a color to any task to group a plan by team, owner, or phase.

What is a Gantt chart?

A Gantt chart is a project timeline where each task is a horizontal bar placed on a shared date axis, so its position shows when the work starts and ends and its length shows how long it takes. Overlaps and dependencies read at a glance, which is why it's the go-to view for roadmaps and schedules.

How to make a Gantt chart

1Enter your tasks. Add a row per task with a label, a start date, and an end date, or start from a sample like a product launch plan.
2Set progress. Give each task a percent complete to draw a filled portion of its bar, or leave it blank for a plain bar.
3Color and theme. Pick a bar color, or color bars by team with the sprint preset. Switch to a dark background for slides or social.
4Download PNG or SVG. Click download for a high-resolution PNG or a crisp, scalable SVG. No watermark and no signup.
5Automate with the API (optional). Save it as an Imejis template and render a fresh timeline from new tasks on every API call.

What is a Gantt chart used for?

Product roadmaps and release timelines
Project and sprint status in reports
Schedules and plans in slides and emails
Content and campaign calendars
Milestone and year-in-review graphics

How this chart maker compares

Feature	This tool	Chart-image APIs	Design makers
No-code visual editor	Yes	No, write JSON/URL config	Yes
Chord + 23 other chart types	Yes	Limited / plugins	Some types only
PNG and SVG export	Yes, free	Varies, often watermarked free	Often account-gated
No signup, no watermark	Yes	API key required	Account required
Matching image API	Yes	API only, no editor	No

Bottom line: config-driven chart APIs make you hand-write JSON and live with dated defaults, and design makers gate exports behind an account. This tool gives you a live editor, beautiful output, free PNG and SVG, and the same chart on tap via API.

Generate Gantt charts automatically via API

Save your design as a template, mark the gantt component dynamic, and render a fresh timeline from new tasks on every API call. It is a Gantt chart maker with a matching image API.

See the gantt component and API