Package: vroom 1.7.1.9000

Jennifer Bryan

vroom: Read and Write Rectangular Text Data Quickly

The goal of 'vroom' is to read and write data (like 'csv', 'tsv' and 'fwf') quickly. When reading it uses a quick initial indexing step, then reads the values lazily , so only the data you actually use needs to be read. The writer formats the data in parallel and writes to disk asynchronously from formatting.

Authors:Jim Hester [aut], Hadley Wickham [aut], Jennifer Bryan [aut, cre], Shelby Bearrows [ctb], https://github.com/mandreyel/ [cph], Jukka Jylänki [cph], Mikkel Jørgensen [cph], Posit Software, PBC [cph, fnd]

vroom_1.7.1.9000.tar.gz
vroom_1.7.1.9000.zip(r-4.7)vroom_1.7.1.9000.zip(r-4.6)vroom_1.7.1.9000.zip(r-4.5)
vroom_1.7.1.9000.tgz(r-4.6-x86_64)vroom_1.7.1.9000.tgz(r-4.6-arm64)vroom_1.7.1.9000.tgz(r-4.5-x86_64)vroom_1.7.1.9000.tgz(r-4.5-arm64)
vroom_1.7.1.9000.tar.gz(r-4.7-arm64)vroom_1.7.1.9000.tar.gz(r-4.7-x86_64)vroom_1.7.1.9000.tar.gz(r-4.6-arm64)vroom_1.7.1.9000.tar.gz(r-4.6-x86_64)
vroom_1.7.1.9000.tgz(r-4.6-emscripten)
manual.pdf |manual.html✨
card.svg |card.png
vroom/json (API)
NEWS

# Install 'vroom' in R:
install.packages('vroom', repos = c('https://fastverse.r-universe.dev', 'https://cloud.r-project.org'))

Bug tracker:https://github.com/tidyverse/vroom/issues

Pkgdown/docs site:https://vroom.tidyverse.org

Uses libs:
  • c++– GNU Standard C++ Library v3

On CRAN:

Conda:

csvcsv-parserfixed-width-texttsvtsv-parsercpp

19.28 score 641 stars 2.3k packages 6.9k scripts 901k downloads 2 mentions 59 exports 21 dependencies

Last updated from:efe5aef560. Checks:10 OK, 3 NOTE. Indexed: no.

TargetResultTimeFilesSyslog
linux-devel-arm64OK199
linux-devel-x86_64OK198
source / vignettesOK327
linux-release-arm64OK199
linux-release-x86_64OK207
macos-release-arm64OK118
macos-release-x86_64OK400
macos-oldrel-arm64NOTE145
macos-oldrel-x86_64NOTE321
windows-develOK258
windows-releaseOK283
windows-oldrelNOTE225
wasm-releaseOK161

Exports:as.col_speccol_big_integercol_charactercol_datecol_datetimecol_doublecol_factorcol_guesscol_integercol_logicalcol_numbercol_skipcol_timecolscols_condensecols_onlycontainsdate_namesdate_names_langdate_names_langsdefault_localeends_witheverythingfwf_colsfwf_emptyfwf_positionsfwf_widthsgen_charactergen_dategen_datetimegen_doublegen_factorgen_integergen_logicalgen_namegen_numbergen_tblgen_timeguess_typelast_collocalematchesnum_rangeone_ofoutput_columnproblemsspecstarts_withvroomvroom_altrepvroom_examplevroom_examplesvroom_formatvroom_fwfvroom_linesvroom_progressvroom_strvroom_writevroom_write_lines

Dependencies:bitbit64clicpp11crayongluehmslifecyclemagrittrpillarpkgconfigprettyunitsprogressR6rlangtibbletidyselecttzdbutf8vctrswithr

Get started with vroom

Rendered fromvroom.Rmdusingknitr::rmarkdownon May 06 2026.

Last update: 2026-01-16
Started: 2019-03-22

Vroom Benchmarks

Rendered frombenchmarks.Rmdusingknitr::rmarkdownon May 06 2026.

Last update: 2026-01-09
Started: 2019-02-19

Readme and manuals

Help Manual

Help pageTopics
Create column specificationcols cols_only col_big_integer col_character col_date col_datetime col_double col_factor col_guess col_integer col_logical col_number col_skip col_time col_types
Examine the column specifications for a data framecols_condense spec
Create or retrieve date namesdate_names date_names_lang date_names_langs
Generate a random tibblegen_tbl
Generate individual vectors of the types supported by vroomgenerators gen_character gen_date gen_datetime gen_double gen_factor gen_integer gen_logical gen_name gen_number gen_time
Guess the type of a vectorguess_type
Create localesdefault_locale locale
Retrieve parsing problemsproblems
Read a delimited file into a tibblevroom
Show which column types are using Altrepvroom_altrep
Get path to vroom examplesvroom_example vroom_examples
Convert a data frame to a delimited stringvroom_format
Read a fixed-width file into a tibblefwf_cols fwf_empty fwf_positions fwf_widths vroom_fwf
Read lines from a filevroom_lines
Determine whether progress bars should be shownvroom_progress
Structure of objectsvroom_str
Write a data frame to a delimited filevroom_write
Write lines to a filevroom_write_lines