Plot Every Column of Your CSV on One Time Axis

Most online plotters make you pick one column. Drop a logger export in here and every numeric channel is drawn on one time axis at once: channels sharing a unit share an axis, a second unit gets the right-hand axis, and when a file carries more units than two axes can hold, every channel is drawn scaled to its own range with the real ranges in the legend. A record denser than the chart is wide is thinned to bucket means with the minimum and maximum inside each bucket drawn behind the line, and the figure says which interval it used — so what the drawing averaged away is on the sheet rather than assumed to be nothing.

Your data

Drop your logger CSV or Excel file here

CSV, TSV and .xlsx workbooks. HOBOware and Postlad exports are recognised on sight, and most other files are read anyway. It stays on this machine — the workbook is even unzipped here, and nothing is uploaded.

Synthetic seven-day record from a seven-channel weather station at five-minute intervals, written as an ordinary CSV with the units in the headers. It contains a five-hour station outage on the fourth afternoon, a six-hour humidity-sensor dropout on the third day, and a battery channel whose whole range is half a volt. Not measured data.

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SVG is vector — scale it to any size in Illustrator, Inkscape or LaTeX without losing quality, and edit the type. Use it unless a journal insists on raster.

Figure title

Options

Series

Channels to draw

Comma-separated channel names, in the order you want them. Leave empty for every numeric channel in the file.

Y axes

Real units gives two axes at true magnitude and leaves out any third unit. Scaled 0–1 draws every channel, and the legend carries each one’s real range.

More options — series, figure

Series

Thin dense records for drawingWhen there are more readings than the panel is wide, plot bucket means with a min–max band instead. The interval used is stated on the figure.

Figure

Show the min–max bandThe highest and lowest reading inside each bucket, behind the line. Switching it off hides what the thinning averaged away.Mark gaps in the recordGridlinesPrint the notes on the figureThe interval drawn, which unit is on which axis, and any channel left out. These travel with the exported file.

All of that was worked out in this browser tab. Your file was not uploaded, and no request goes out while you work — open the network panel and watch, if you like.