Trend: a general-purpose, efficient trend graph

trend is a general-purpose, efficient trend graph for “live” data. Data is read in ASCII form from a file or continuously from a FIFO and displayed in real-time into a multi-pass trend (much like a CRT oscilloscope). trend can be used as a rapid analysis tool for progressive or time-based data series together with trivial scripting.


See more in the screenshots page.


Trend as an oscilloscope/voltage monitor.


Server monitoring display.


Displaying the available filling modes.


Using trend as an ECG monitor.


Files as found in the latest release of Trend:

NEWS:Summary of changes.
README:Notes about usage and installation.
trend.1:Manual page.


Latest 5 available releases of Trend (most recent first):

Full archive in releases/.

Release announcements are made on the mailing list.

All the relevant source/developer information can be found on Gitlab:


Get involved

If you feel to discuss improvements and suggestions, and/or test beta releases before announcement you can subscribe to trend-users by either sending an empty email to <>, using GMane (group “”) or by contacting the author at <>. The archives are accessible via web through or via news directly.