Free tools

Free survey tools & calculators

Quick calculators and generators for planning and analyzing a study. They run entirely in your browser — nothing is sent anywhere.

NPS Calculator

Turn promoter, passive, and detractor counts into your Net Promoter Score.

Convert survey responses into a clear customer satisfaction percentage.

Find exactly how many responses your survey needs to be statistically valid.

See how precise your survey results really are, from sample size alone.

Estimate the cost of reaching your exact target audience with a survey.

Check whether your A/B test result is real — or just random chance.

Convert any Z-score into a p-value and a plain-English significance verdict.