Slope chart maker

Open the slope example

Two years, one line per country: who rose, who fell and who overtook whom, sourced and dated.

Poland now outspends America on defence, as a share of GDP. Open this chart in the editor

What you get

Any two years: Pick the start and end year; the lines are drawn between them.
Overtakes stand out: Crossing lines show at a glance who passed whom.
Chart or post: Embed it live, or export it sized for social media.
Sourced: The publisher and both years are printed with the chart.

Questions

What is a slope chart?

A chart with two columns, a start year and an end year, and one line per country between them. The angle of the line is the change.

When is it better than a line chart?

When only the two endpoints matter and the years between them would add noise.

Is it free?

Yes, to make and edit. Downloading needs a free account.