Quick ATAC-Seq QC R package quaqcr version 1.0.4 A wrapper around the 'quaqc' program described in Tremblay and Questa (2024) <doi:10.1093/bioinformatics/btae649>. 'quaqc' allows for assay for transposase-accessible chromatin using sequencing (ATAC-seq) specific quality control and read filtering of next-generation sequencing (NGS) data with minimal processing time and extremely low memory overhead. Any number of samples can be processed, using multiple threads if desired. 'quaqc' outputs a comprehensive set of aligned read metrics, including alignment size, fragment size, percent duplicates, mapq scores, read depth, GC content, and others. Although designed for ATAC-seq data, 'quaqc' can also be used for other unspliced DNA sequencing experiments (such as chromatin immunoprecipitation sequencing, or ChIP-seq) as many of the metrics are related to general sequencing quality. This R package also provides additional utilities for custom analyses and plotting of 'quaqc' results. Software Depends: R (>= 3.6.0) Imports: methods, utils, jsonlite Suggests: testthat (>= 3.0.0) Benjamin Jean-Marie Tremblay <benjmtremblay@gmail.com> Comprehensive R Archive Network (CRAN) Benjamin Jean-Marie Tremblay [aut, cre] (ORCID: <https://orcid.org/0000-0002-7441-2951>) GPL (>= 3) 2026-05-19 application/tgz https://CRAN.R-project.org/package=quaqcr doi:10.32614/CRAN.package.quaqcr