Interactive Evidence Gap Mapper

Build visual evidence gap maps from your systematic review studies. Identify where research is abundant, where it is sparse, and where critical gaps exist — then translate those findings directly into research priority recommendations.

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How Evidence Gap Mapping Works

An evidence gap map (EGM) is a structured visual tool used in systematic reviews and evidence synthesis to display the volume and characteristics of evidence across a matrix of interventions and outcomes — or any two research dimensions. This tool supports M&E learning and complements the full EvalCommunity Toolkit. Follow the four steps below: load your studies, configure your map axes, view the interactive matrix, then review prioritised research gaps. A demo dataset is pre-loaded — clear it to begin mapping your own evidence.

Load Studies

Configure Map

View Map

Gap Analysis

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Your Included Studies

Add studies from your systematic or literature review, or work with the demo dataset

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No studies yet

Add your included studies manually or load the demo dataset to explore.

0 studies loaded

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Configure Your Evidence Map

Choose which dimensions to map on each axis, and define the categories

X Axis (Columns)

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Active categories (click to toggle):

Y Axis (Rows)

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Active categories (click to toggle):

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