Past 4 - the Past of the Future

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) (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

PDF manual (8 MB)


Frequently Asked Questions!

Terms, reference, etc.

Version history

PAST mailing list

Øyvind Hammer, Natural History Museum, University of Oslo [ohammer(at)]