A HTML vignette is a lightweight alternative to html_document suitable for inclusion in packages to be released to CRAN. It reduces the size of a basic vignette from 100k to around 10k.

  fig_width = 3,
  fig_height = 3,
  dev = "png",
  df_print = "default",
  css = NULL,
  keep_md = FALSE,
  readme = FALSE,
  self_contained = TRUE,



Default width (in inches) for figures


Default height (in inches) for figures


Graphics device to use for figure output (defaults to png)


Method to be used for printing data frames. Valid values include "default", "kable", "tibble", and "paged". The "default" method uses a corresponding S3 method of print, typically print.data.frame. The "kable" method uses the knitr::kable function. The "tibble" method uses the tibble package to print a summary of the data frame. The "paged" method creates a paginated HTML table (note that this method is only valid for formats that produce HTML). In addition to the named methods you can also pass an arbitrary function to be used for printing data frames. You can disable the df_print behavior entirely by setting the option rmarkdown.df_print to FALSE. See Data frame printing section in bookdown book for examples.


One or more css files to include


Keep the markdown file generated by knitting.


Use this vignette as the package README.md file (i.e. render it as README.md to the package root). Note that if there are image files within your vignette you should be sure to add README_files to .Rbuildignore


Produce a standalone HTML file with no external dependencies, using data: URIs to incorporate the contents of linked scripts, stylesheets, images, and videos. Note that even for self contained documents MathJax is still loaded externally (this is necessary because of its size).


Additional arguments passed to html_document. Please note that theme, fig_retina and highlight are hard coded. Setting any of those will yield an error.


R Markdown output format to pass to render


Compared to html_document, it:

  • never uses retina figures

  • never uses a theme

  • has a smaller default figure size

  • uses a custom css stylesheet

  • uses a custom highlight scheme

See the online documentation for additional details on using the html_vignette format.