Past 4 - the Past of the Future

Image may contain: Orange, Chambered nautilus, Sea snail, Nautilus, Clip art.Past is free software for scientific data analysis, with functions for data manipulation, plotting, univariate and multivariate statistics, ecological analysis, time series and spatial analysis, morphometrics and stratigraphy.

Past went through a complete redesign with version 3 in 2013. In 2020, version 4 was released with 64-bit support.

Past works under Windows 10, 8 and 7, and Mac OSX Catalina, Mojave, High Sierra, Sierra.

Current version (June 2020): 4.03



Windows, zipped exe, version 4.03 (8 MB, 64-bit)
Note: Firefox may cause problems with the download, use Chrome

Windows, zipped exe, version 4.02 (8 MB, 64-bit)

Mac, version 4.03 (10 MB, 64-bit)
Note: First time you run Past you must Control-click on the Past app and select Open to override security settings

Manual (PDF, 8 MB)


Frequently Asked Questions

Terms, reference, etc.

Help articles

Version history

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Professor Øyvind Hammer
Natural History Museum – University of Oslo