What a good timeline slide shows
- Phases as summary bars, so the shape of the project reads at a glance.
- Milestones as diamonds with their dates: sign-offs, go-lives, contract dates.
- Today as a line, so everyone sees what should be finished by now.
- Progress on each bar if you are reporting status, and nothing else.
Owner columns, every dependency arrow and day-by-day scales belong in the working plan. On an executive slide they are noise.
Step by step
- Paste the plan. Copy your task rows from Excel, Smartsheet or Project (with headers) into the box above.
- Cut it down. In the edit table, delete detailed rows you don’t need on the slide, or start a separate list with just phases and milestones. Around 10 to 15 rows reads well on one slide.
- Set the scale. Choose Weeks for a plan of a few months, Months for a year, Quarters for a programme. Auto picks the finest scale that fits.
- Tidy the display. Under Show and hide, turn off the owner column and dependency arrows; keep the today line and % done for a status update. Colour by phase.
- Pick a theme. Boardroom suits most corporate templates; Blueprint is dark for dark slide masters; Print is greyscale for handouts.
- Export. PowerPoint gives you editable shapes to drop into your own deck; PDF gives a fixed page (A4 or Letter) for attaching to an email or a board pack.
A minimal timeline to paste
This is enough for a one-slide project timeline. Copy it, paste it above, and replace the names and dates:
Task Start End Milestone % Complete Discovery 02/11/2026 20/11/2026 100% Contract signed 20/11/2026 20/11/2026 Yes Design 23/11/2026 18/12/2026 40% Build 04/01/2027 26/02/2027 Testing 01/03/2027 19/03/2027 Go live 22/03/2027 22/03/2027 Yes
Rows marked Yes in the Milestone column are drawn as diamonds with their date beside them. A duration of 0, or Type → Milestone in the edit table, does the same.
Common mistakes on timeline slides
- Too many rows. If the slide needs a second page, it is a working plan, not a timeline. Keep the detail in the plan and show phases here.
- Dates nobody can read. Use a scale where the header labels are legible from the back of the room: months for a year-long project, not days.
- Colour without meaning. Colour by phase or by owner, and keep the legend on, so a colour always says something.
- A stale today line. Export again before each meeting; the line moves to the current date on its own.
Keeping it current
The chart is saved in your browser, so next month you can come back, change the % done and any dates that moved, and export again. Because the today line moves on its own, a fresh export each reporting cycle shows progress against the date without editing a slide by hand. Downloading the same unchanged chart twice costs nothing; an updated chart uses one credit.
If you only need an image for an email or a wiki page, the PNG and SVG downloads are free and use the same layout.
Paste your phases and milestones above. Charts, editing, PNG and SVG are free with no sign-up. Editable PowerPoint and PDF cost one credit per chart (10 for £5).
Related: An editable Gantt chart in PowerPoint · Make a timeline from Excel · Make a Gantt chart from Excel