This seems quite similar to RawGraphs: <a href="https://rawgraphs.io/" rel="nofollow">https://rawgraphs.io/</a><p>Both seem to provide a similar interface for dragging in a CSV file and constructing a chart, but RawGraphs is open-source, and can be used in the browser without installing anything (or the code can be downloaded and served locally).<p>The main advantage of Daigo over RawGraphs seems to be that it supports publishing multiple charts as a dashboard. However, in the examples it looks like there is no cross-linking or coordination between charts, which is a limitation