All-Cause and Excess Mortality Calculator R package exmort version 0.1.0 An interactive 'shiny' application that estimates all-cause mortality and excess mortality from country-level weekly or monthly death counts. Users supply observed deaths and an event calendar (for example COVID-19 waves or typhoons); the app fits one or more statistical baseline models (historical average, negative binomial regression, quasi-Poisson regression, zero-inflated Poisson regression, ARIMA (autoregressive integrated moving average) and SARIMA (seasonal ARIMA) models, GAM (generalized additive model) splines, and the model of Karlinsky and Kobak (2021) <doi:10.7554/eLife.69336>) on a user-defined baseline period, projects the expected deaths into the post-baseline period, and reports excess deaths, P-scores (excess deaths as a percentage of expected deaths) and confidence limits with tables, plots and downloadable reports. Launch the application with run_app(). Software Imports: base64enc, data.table, dplyr, DT, forecast, ggplot2, ggrepel, htmltools, ISOweek, kableExtra, knitr, lubridate, mgcv, openxlsx, parallel, plotly, reactable, readxl, RColorBrewer, reshape2, rmarkdown, scales, shiny, shinyalert, shinycssloaders, shinyjs, stringr, tibble, tidyr, zoo Suggests: officedown, testthat (>= 3.0.0), tinytex Shanlong Ding <dings@who.int> Comprehensive R Archive Network (CRAN) Shanlong Ding [aut, cre], World Health Organization Regional Office for the Western Pacific [cph, fnd] GPL-3 2026-07-30 application/tgz https://CRAN.R-project.org/package=exmort doi:10.32614/CRAN.package.exmort en-GB