Tag density plot form chip or atac seq data
You can use Homer to retrieve tag densities, quoting from their manual:


  Calculating ChIP-Seq Tag Densities across different experiments
  
  annotatePeaks.pl is [a] useful program for cross-referencing data from
  multiple experiments.  In order to count the number of tags from
  different sequencing experiments, you must first create tag
  directories for each of these experiments.  Once created, tag counts
  from these directories in the vicinity of your peaks can be added by
  specifying "-d   ...".  You can
  specify as many tag directories as you like.  Tag totals for each
  directory will be placed in new columns starting on column 18.  For
  example:
  
  annotatePeaks.pl pu1peaks.txt mm8 -size 400 -d Macrophage-PU.1/
  Bcell-PU.1/ > output.txt