Free Resources
Free tools and templates for researchers
Calculators, frameworks, and guides to support your research — free to use, no signup required.
Calculators & interactive tools
Sample Size Calculator
Calculate the minimum sample size needed for your study using Cochran's formula, with finite population correction.
Use the calculator →PICO Framework Builder
Turn a broad topic into a focused, answerable research question using the PICO framework.
Use the builder →Guides
PRISMA 2020 Checklist
A practical walkthrough of what each PRISMA 2020 item requires.
Read the guide →How to Conduct a Systematic Review
The full process from research question to PRISMA-compliant report.
Read the guide →Templates & checklists
Coming soon — PRISMA flow diagram template, data extraction template, risk of bias templates, GRADE checklist, sample protocol, sample search strategy, and sample consent forms.