OpenDrop

OpenDrop v1.1 is here, and available for free download!

This new version now works on Windows, MacOS and Linux.




OpenDrop is a fully-featured pendant drop tensiometry software, allowing acquisition, analysis and fitting of pendant drop profiles to obtain surface and interfacial tension. It is released under the GNU GPL open source license, and available for free.

OpenDrop was developed by a team in Melbourne, Victoria, working across three main institutions: Monash University (School of Chemistry), the University of Melbourne (Department of Mathematics and Statistics and Chemical and Biomolecular Engineering) and the CSIRO. The code authors/maintainers are Drs Michael Neeson, Joe Berry and Rico Tabor.


OpenDrop can be downloaded from our GitHub repository and there you will also find the installation instructions and manual.


If you use this software in your research, please cite the following journal article:

J. D. Berry, M. J. Neeson, R. R. Dagastine, D. Y. C. Chan and R. F. Tabor, Measurement of surface and interfacial tension using pendant drop tensiometry, Journal of Colloid and Interface Science 454 (2015) 226–237.

These citations help us not only to understand who is using and developing OpenDrop, and for what purpose, but also to justify continued development of this code and other open source resources.


For assistance, to submit bug reports, change requests or new versions, please visit our discussion group.

If you'd prefer, you can directly email the development team: opendrop.dev@gmail.com

OpenDrop Forum