Free Survey Research Tools
Plan your sample, design better questions, and protect your data quality. Every tool is free, instant, and works without an account. Each one comes with a practical guide on the blog.
Pick your tool
Six tools that cover the questions every survey researcher hits: how many responses, which scale, how many invitations, and how to keep bad data out.
Sample Size Calculator
Work out how many completed responses you need from your confidence level, margin of error, and population size.
Statistical Power Calculator
A free G*Power alternative. Set effect size, alpha, and power to find the sample size your test needs to detect a real effect.
Response Rate Calculator
Turn a response target into an invitation plan. Accounts for response rate, screen-outs, and bounced invitations.
Likert Scale Generator
Generate copyable 3, 5, 7, and 10 point scales for agreement, satisfaction, frequency, and more, with reverse-coded items.
Attention Check Generator
20+ proven attention checks you can copy into your survey to catch bots, speeders, and low-effort respondents.
AI Survey Responder Guide
Thinking about AI-generated answers, or worried others are using them on your survey? What fake responses do to a study.
How the tools fit together
Use them in order and you have a defensible research plan before you send a single invitation.
Set your target with the sample size calculator, or the power calculator if you are testing an effect.
Build clean scales with the Likert scale generator and keep wording consistent across items.
Convert your target into invitations with the response rate calculator.
Add attention checks and learn to spot AI-generated answers before they reach your dataset.
Guides that go with the tools
The calculators give you a number. These guides explain the number, the trade-offs behind it, and what to do next.
Whenever you are ready
Get the responses your study needs
Turn your sample size target into completed survey responses. Use the free exchange, buy respondents, or let SurveySwap Agency handle collection for you.