LJPcalc is a free and open source liquid junction potential (LJP) calculator. LJPcalc is available as a simple click-to-run EXE for Windows and a console application for Linux and MacOS.
If LJPcalc facilitated your research, consider citing this project by name so it can benefit others too:
"Liquid junction potential was calculated according to the stationary Nernst-Planck equation using LJPcalc¹"
 Harden, SW and Brogioli, D (2020). LJPcalc v1.0. [Online]. Available: http://swharden.com/LJPcalc, Accessed on: April. 11, 2020.
LJPcalc was created by Scott W Harden in 2020. LJPcalc began as C# port of JLJP by Doriano Brogioli originally published on SourceForge in 2013. LJPcalc is heavily influenced by Marino et al., 2014. See the theory page for implementation details.