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Free tools for better
Free tools for better
forms and research.
Practical calculators and generators for surveys, experiments, customer feedback, campaigns, and data collection.
11 free toolsRuns in your browserInstant results
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No trials or gated results. Open any tool and use it right away.
Survey & Research
NPS CalculatorCalculate your Net Promoter Score and see the split between promoters, passives, and detractors.
CSAT CalculatorCalculate Customer Satisfaction Score from a 5-point or 7-point rating distribution.
CES CalculatorCalculate Customer Effort Score and the share of customers reporting a low-effort experience.
Survey Response Rate CalculatorCalculate the percentage of survey invitations that became responses and compare a planning benchmark.
Sample Size CalculatorEstimate how many survey responses you need for a chosen confidence level and margin of error.
Confidence Interval CalculatorCalculate a confidence interval for a sample mean using sample size, mean, and standard deviation.
Statistical Significance CalculatorCompare two conversion rates with a two-sided, pooled-proportion z-test for an A/B experiment.
Chi-Square CalculatorTest whether two categorical variables are independent with a configurable contingency table.
Utility
From calculation to collection
Build a free form →Ready to ask the questions?
Create a conversational survey in Rowform, share it anywhere, and turn responses into decisions.