Tools
Statistics tools
Focused tools for one job at a time — no full study required. The free ones need no sign-up; the pay-as-you-go ones run on credits and process your uploaded data.
Free
Which statistical test?
Answer a few questions about your data and get the correct test — with its assumptions.
Open →Free
Sample size & power
Plan how many participants you need before you collect a single row of data.
Open →Free
APA results formatter
Turn your test statistics into a correctly formatted APA results line.
Open →Free
Chart maker
Upload data and generate publication-ready figures — scatter, box, histogram — to download.
Open →Pay-as-you-go
Reliability (Cronbach's α)
Check a scale's internal consistency, item by item, with alpha-if-deleted diagnostics.
Open →Pay-as-you-go
Data cleaning
Fix duplicates, missing values and type errors — transparently, with a change log.
Open →