PRISMA 2020
Build a flow diagram for a new or updated systematic review.
Open tool →Tools
For research, analysis and reporting
Research tools, R packages and practical resources from Think Denominator.
Research tools
These free browser-based tools simplify common research reporting tasks. Create an exportable flow diagram without installing software. The numbers you enter stay on your device.
CONSORT 2025
Build a participant flow diagram for a parallel-group trial.
Open tool →Private by design: Think Denominator does not receive the numbers entered into either generator.
R packages
Open-source packages that reduce repetitive work while keeping analytical decisions visible.
gtregression
Regression tables, plots and reporting workflows with less code.
View gtregression →gtstats
Descriptive statistics, group comparisons and reusable statistical outputs.
View gtstats →The packages form part of SimplyfyR, developed by Think Denominator in collaboration with Propul Evidence LLP. Source code is available on GitHub.