Free · Privacy-first · Publication-ready

Turn outbreak data into answers

Review and clean a line list, build epi curves and maps, calculate key measures, and export publication-ready figures—all in your browser.

Try a sample outbreak Import your own data

No account required · Synthetic sample data included

LineList epidemic curve using 12-hour bins and case-status strata, with an exposure annotation and 7-1-7 response metrics

From line list to maps and figures

See the core workflow using the included synthetic foodborne outbreak.

Synthetic foodborne outbreak line list beside the Data Quality panel showing no issues detected

1 · Review and clean

Catch problems before they reach your analysis

Inspect the full line list, run data-quality checks, filter records, and create derived variables in one workspace.

Synthetic epidemic curve stratified by confirmed, probable, and suspected cases, with exposure timing and 7-1-7 milestones

2 · Analyze

Turn onset dates into a defensible epi curve

Choose time bins, stratify cases, annotate a suspected exposure, and place response milestones directly on the curve.

Synthetic foodborne outbreak spot map with jittered case locations colored by classification and map export controls

Synthetic epidemic curve with case-status strata, exposure timing, and response milestones

Publication-ready horizontal bar chart of synthetic cases by classification with export controls

3 · Create maps and figures

Show where cases occurred and create clear figures

Build spot maps, epi curves, and publication-ready charts, then export them for a report, briefing, or handoff.

Who LineList is for

Built for people doing practical outbreak work

LineList is designed for field epidemiologists, outbreak investigators, FETP residents and instructors, and public-health teams that need dependable results without a programming workflow.

Also included

Useful tools around the core review, analysis, and figure-creation workflow.

Import CSV & Excel

Upload files or paste directly from a spreadsheet, with date-format handling built in.

Maps

Create spot, area, and sketch maps for field investigation and communication.

Statistics & 2×2 tables

Calculate descriptive measures, frequencies, cross-tabs, and standard epidemiologic measures.

Training datasets & tutorials

Learn with synthetic investigations and step-by-step guidance inside the app.

Portable projects

Export the whole project for backup, transfer, or a clean handoff to a colleague.

Locale & accessibility

Adjust number and date formats alongside built-in accessibility controls.

Your imported data stay in your browser

Imported datasets are processed locally and saved only in your browser's storage. LineList does not upload your data to an application server or offer cloud dataset storage. Map tiles and other externally hosted resources generate normal network requests.

Do not import protected health information or direct identifiers. De-identify datasets and follow your organization's policies before use.

See the workflow with a ready-made outbreak

Explore the synthetic foodborne investigation with its epi curve, spot map, exposure timing, and response milestones already configured.

Try the sample outbreak →