LifeFit Documentation

LifeFit is a Python package to analyze time-correlated single-photon counting (TCSPC) data sets, namely fluorescence lifetime and time-resolve anisotropy decays.


You can run LifeFit directly in your browser:



Initial startup of the webserver might take a few seconds, please be patient.


There are different options how to install LifeFit.


Install the package into your conda environment

conda install -c fdsteffen lifefit


Alternatively, you can install the latest release of with pip

pip install lifefit

Install from source

Finally, you can also get the latest development version directly from Github

pip install git+


For an introduction into the functionality of LifeFit visit the tutorial. The Jupyter Notebook can be downloaded here.

Bug reports

Please report any bugs via the issue tracker on Github.


To cite LifeFit, please refer to the following paper:

F.D. Steffen, R.K.O. Sigel, R. Börner, Phys. Chem. Chem. Phys. 2016, 18, 29045-29055. citation