Lightweight Tables via JSON Specs and JavaScript R package lt version 0.4 A lightweight grammar of tables. Build a table by declaring a JSON spec (titles, spanners, row groups, footnotes, formatting functions, etc.); a tiny vanilla JavaScript runtime builds the HTML table from the spec on page load. No 'sass', no 'V8', no 'htmlwidgets' — just base R and 'xfun' ('htmltools' is used only for the optional Shiny binding). Software Depends: R (>= 4.1.0) Imports: xfun (>= 0.60) Suggests: htmltools, knitr, litedown, magick, repr, shiny, testit Yihui Xie <xie@yihui.name> Comprehensive R Archive Network (CRAN) Yihui Xie [aut, cre, cph] (ORCID: <https://orcid.org/0000-0003-0645-5666>, URL: https://yihui.org) MIT + file LICENSE (https://CRAN.R-project.org/package=lt/LICENSE) 2026-09-01 application/tgz https://CRAN.R-project.org/package=lt doi:10.32614/CRAN.package.lt