Tools

Free tools from the Lerner Lab: calculators for planning animal experiments, and GuPPy, our open-source software for analyzing fiber photometry data. The calculators run entirely in your browser; nothing you enter is stored or sent anywhere.

Mouse Breeding Planner

Genotype ratios for multi-allele crosses (Cre, flox, reporters, X-linked), how many litters and breeding cages you need, when your mice will be ready, and faster alternative crosses.

Open the planner →

Sample Size Calculator

Power analysis for common animal study designs, with a justification paragraph ready to paste into your animal use protocol. t-test and ANOVA results match the R package pwr.

Open the calculator →

GuPPy

Open-source Python software for analyzing fiber photometry data from a wide variety of acquisition systems, with a paper, wiki, video tutorial and chat room.

Get GuPPy →