Use the free Timeline Chart Maker below: your data never leaves your browser — all work happens on your device, and nothing is uploaded to any server.
A list of dates is hard to follow, but a timeline turns it into a story. Events sit in order, gaps show quiet periods, and clusters show busy ones. The Timeline Chart Maker builds that view from pasted rows: one event per row, with a date, a name, and an optional group. It draws the events on a time axis, grouped by the group column, so a project plan, a family history, or a product story can be read at a glance.
To use it, paste rows with a header first, such as date,event,group. Dates should be written YYYY-MM-DD, which the tool reads reliably. The event is a short name, and the group is optional: use it to separate work from personal events, or one product line from another. Press Draw timeline and the events appear in date order, earliest first, with a tooltip showing each event name and date when you hover.
Timelines are useful far beyond history lessons. A project manager can paste milestones and see whether deadlines bunch up in one month. A student can paste the events of a novel or a historical period and memorise the order. A family historian can paste births, moves, and marriages and spot the decades where the story thickens. A small business can paste launches and campaigns and see which years carried the most change.
The grouping column is what turns a flat list into a readable chart. Without groups, every event sits on one line, which is fine for a single story. With groups, each group gets its own row, so two parallel stories, such as two departments or two family branches, can be compared side by side. Keep group names short and consistent: a typo creates a second group that looks like a separate story.
Dates deserve care. The tool reads dates with the built-in date parser, and ISO dates, YYYY-MM-DD, are the only shape that is never ambiguous. Slash dates can be read month-first by browsers, so a day-first file may land events in the wrong month. If your source file uses slashes, convert it to ISO form first, or check the plotted order against your list before sharing the chart. Rows with unreadable dates are skipped rather than guessed, so a missing event usually means a date typo.
If the chart library fails to load, the tool still shows your events as a sorted list, earliest first, so the work is never wasted. That fallback is less pretty but just as accurate, and it is a good reminder that the order is the real content of a timeline. A timeline with the right order and plain text beats a beautiful chart with a wrong date.
Timelines also help with planning ahead, not just recording the past. Paste a project’s planned milestones, add the dates you have committed to, and the chart shows whether the second half of the year is overloaded while the first half sits empty. That view is hard to get from a task list, because task lists hide dates inside rows. When the load looks uneven, move one milestone, paste again, and watch the shape change. The tool costs nothing to re-run, so there is no reason to plan from a single draft.
How to make a timeline chart
- Paste one event per row: date, event, and an optional group.
- Write dates as YYYY-MM-DD to avoid ambiguity.
- Press Draw timeline.
- Hover an event to see its name and date.
- Check the order against your list before sharing.
Frequently asked questions
What date format should I use? YYYY-MM-DD. It is unambiguous and sorts correctly.
What is the group column for? It splits events into rows, so parallel stories can be compared side by side.
Why is an event missing? Its date was probably unreadable. Check for typos and use ISO dates.
Is my data uploaded? No. All drawing happens in your browser.
Start with a story you already know, such as your last year of work or a favourite historical period, and paste ten events. The shape of the timeline will show you something the list never did.