Jeroen Ooms

97 packages On CRAN since Nov 2009 (16 years) · last active 3 days ago On Bioconductor since Apr 2015 (11 years) 0000-0002-4035-0289

R-Universe CRAN Search

Downloads

14.8M

Last 30 days

47.2M

Last 90 days

203.9M

Last year

Average trend: +1.6% (30d vs prior 30d)

Top Packages by Downloads

1.8M

jsonlite

1.5M

curl

1.3M

evaluate

994.9K

openssl

920K

xml2

863.4K

askpass

743.6K

sys

737.9K

systemfonts

633.2K

commonmark

590.7K

Portfolio Check Status

Aggregate CRAN check results across 54 maintained packages.

ERROR

NOTE

682

Needs attention

commonmark ERROR jsonlite ERROR ssh ERROR

Recent Activity

gdtools updated v0.5.2 Oct 15, 2026

Font Metrics and Font Management Utilities for R Graphics

curl updated v8.1.0 Oct 14, 2026

A Modern and Flexible Web Client for R

gert updated v2.5.0 Oct 14, 2026

Simple Git Client for R

toml updated v1.2.0 Oct 8, 2026

Read, Write, and Modify TOML Files

s2 updated v1.1.13 Sep 28, 2026

Spherical Geometry Operators Using the S2 Geometry Library

opencv updated v0.6.1 Sep 17, 2026

Bindings to 'OpenCV' Computer Vision Library

fluidsynth updated v1.0.4 Sep 15, 2026

Read and Play Digital Music (MIDI)

opencv updated v0.6.0 Sep 14, 2026

Bindings to 'OpenCV' Computer Vision Library

tesseract updated v5.3.1 Sep 12, 2026

Open Source OCR Engine

sf updated v1.1-3 Sep 11, 2026

Simple Features for R

Maintained Packages

54 packages

Package	Title	Downloads	Version
fs 1.8M downloads/30d	Cross-Platform File System Operations Based on 'libuv'	1.8M	2.1.0
jsonlite 1.5M downloads/30d	A Simple and Robust JSON Parser and Generator for R	1.5M	2.0.0
curl 1.3M downloads/30d	A Modern and Flexible Web Client for R	1.3M	8.1.0
openssl 920K downloads/30d	Toolkit for Encryption, Signatures and Certificates Based on OpenSSL	920K	2.4.2
xml2 863.4K downloads/30d	Parse XML	863.4K	1.6.0
askpass 743.6K downloads/30d	Password Entry Utilities for R, Git, and SSH	743.6K	1.2.1
sys 737.9K downloads/30d	Powerful and Reliable Tools for Running System Commands in R	737.9K	3.4.3
commonmark 590.7K downloads/30d	High Performance CommonMark and Github Markdown Rendering in R	590.7K	2.0.0
V8 280.4K downloads/30d	Embedded JavaScript and WebAssembly Engine for R	280.4K	8.2.0
gert 174.5K downloads/30d	Simple Git Client for R	174.5K	2.5.0
credentials 142.1K downloads/30d	Tools for Managing SSH and Git Credentials	142.1K	2.0.3
magick 109.6K downloads/30d	Advanced Graphics and Image-Processing in R	109.6K	2.9.1
jose 72.3K downloads/30d	JavaScript Object Signing and Encryption	72.3K	2.0.0
pdftools 61.2K downloads/30d	Text Extraction, Rendering and Converting of PDF Documents	61.2K	3.9.1
hunspell 60.3K downloads/30d	High-Performance Stemmer, Tokenizer, and Spell Checker	60.3K	3.0.6
spelling 59.4K downloads/30d	Tools for Spell Checking in R	59.4K	2.3.2
qpdf 51.2K downloads/30d	Split, Combine and Compress PDF Files	51.2K	1.4.1
rsvg 32.7K downloads/30d	Render SVG Images into PDF, PNG, (Encapsulated) PostScript, or Bitmap Arrays	32.7K	2.7.0
sodium 27.1K downloads/30d	A Modern and Easy-to-Use Crypto Library	27.1K	1.4.0
RMySQL 25.1K downloads/30d	Database Interface and 'MySQL' Driver for R	25.1K	0.11.3
webutils 23.1K downloads/30d	Utility Functions for Developing Web Applications	23.1K	1.2.3
gifski 17.6K downloads/30d	Highest Quality GIF Encoder	17.6K	1.32.0-2
katex 12.7K downloads/30d	Rendering Math to HTML, 'MathML', or R-Documentation Format	12.7K	1.5.0
av 10.6K downloads/30d	Working with Audio and Video in R	10.6K	0.9.6
tesseract 9.5K downloads/30d	Open Source OCR Engine	9.5K	5.3.1
xslt 9.4K downloads/30d	Extensible Style-Sheet Language Transformations	9.4K	1.5.1
base64 8.7K downloads/30d	Base64 Encoder and Decoder	8.7K	2.0.2
mongolite 7.7K downloads/30d	Fast and Simple 'MongoDB' Client for R	7.7K	4.1.0
webp 7.2K downloads/30d	A New Format for Lossless and Lossy Image Compression	7.2K	1.3.0
jqr 5.8K downloads/30d	Client for 'jq', a 'JSON' Processor	5.8K	1.4.0
protolite 5K downloads/30d	Highly Optimized Protocol Buffer Serializers	5K	2.4.0
antiword 4.8K downloads/30d	Extract Text from Microsoft Word Documents	4.8K	1.3.5
ssh 2.8K downloads/30d	Secure Shell (SSH) Client for R	2.8K	0.9.4
brotli 2.5K downloads/30d	A Compression Format Optimized for the Web	2.5K	1.3.2
js 2.3K downloads/30d	Tools for Working with JavaScript in R	2.3K	1.2.1
jsonld 2.2K downloads/30d	JSON for Linking Data	2.2K	2.2.1
unix 1.9K downloads/30d	POSIX System Utilities	1.9K	1.6.0
opencv 1.5K downloads/30d	Bindings to 'OpenCV' Computer Vision Library	1.5K	0.6.1
bcrypt 1.3K downloads/30d	'Blowfish' Key Derivation and Password Hashing	1.3K	1.2.1
toml 1.3K downloads/30d	Read, Write, and Modify TOML Files	1.3K	1.2.0
cld3 1.2K downloads/30d	Google's Compact Language Detector 3	1.2K	1.6.2
cld2 1.2K downloads/30d	Google's Compact Language Detector 2	1.2K	1.2.6
opencpu 956 downloads/30d	Producing and Reproducing Results	956	2.2.15
graphql 890 downloads/30d	A GraphQL Query Parser	890	1.5.3
fluidsynth 638 downloads/30d	Read and Play Digital Music (MIDI)	638	1.0.4
maketools 486 downloads/30d	Exploring and Testing the Toolchain and System Libraries	486	1.3.2
rzmq 469 downloads/30d	R Bindings for 'ZeroMQ'	469	0.9.16
unrtf 403 downloads/30d	Extract Text from Rich Text Format (RTF) Documents	403	1.4.8
prismjs 365 downloads/30d	Server-Side Syntax Highlighting	365	2.1.0
postdoc 355 downloads/30d	Minimal and Uncluttered Package Documentation	355	1.4.2
ghapps 351 downloads/30d	Authenticate as a 'GitHub' App	351	1.1.1
hellorust 308 downloads/30d	Minimal Examples of Using Rust Code in R	308	1.2.3
badgen 298 downloads/30d	Fast and Simple Badge Generator	298	1.0.1
RAppArmor 227 downloads/30d	Bindings to AppArmor and Security Related Linux Tools	227	3.2.5

Co-authored Packages

15 packages

Package	Title	Downloads	Version
systemfonts 633.2K downloads/30d	System Native Font Finding	633.2K	1.3.2
writexl 260.5K downloads/30d	Export Data Frames to Excel 'xlsx' Format	260.5K	2.0.1
arrow 174.1K downloads/30d	Integration to 'Apache' 'Arrow'	174.1K	25.0.1
gdtools 148.4K downloads/30d	Font Metrics and Font Management Utilities for R Graphics	148.4K	0.5.2
RPostgres 51.8K downloads/30d	C++ Interface to PostgreSQL	51.8K	1.4.10
RMariaDB 12.7K downloads/30d	Database Interface and MariaDB Driver	12.7K	1.3.5
geojson 3.7K downloads/30d	Classes for 'GeoJSON'	3.7K	0.3.5
RProtoBuf 2K downloads/30d	R Interface to the 'Protocol Buffers' 'API' (Version 2 or 3)	2K	0.4.28
redland 1.9K downloads/30d	RDF Library Bindings in R	1.9K	1.0.17-19
nodbi 621 downloads/30d	Document 'NoSQL' Database DBI Connector	621	0.15.0
tinkr 566 downloads/30d	Cast '(R)Markdown' Files to 'XML' and Back Again	566	0.3.1
sarsop 369 downloads/30d	Approximate POMDP Planning Software	369	0.6.16
phylocomr 330 downloads/30d	Interface to 'Phylocom'	330	0.3.4
rdataretriever 281 downloads/30d	R Interface to the Data Retriever	281	3.1.1
tanner 183 downloads/30d	Puberty Stage Line Diagrams and SDS for Tanner Pubertal Stages	183	1.8.0

Contributions

27 packages

Package	Title	Downloads	Version
evaluate 994.9K downloads/30d	Parsing and Evaluation Tools that Provide More Details than the Default	994.9K	1.0.5
httpuv 558.5K downloads/30d	HTTP and WebSocket Server Library	558.5K	1.6.17
nloptr 445K downloads/30d	R Interface to NLopt	445K	2.2.1
markdown 408K downloads/30d	Render Markdown with 'commonmark'	408K	2.0
sf 315.8K downloads/30d	Simple Features for R	315.8K	1.1-3
pak 308.3K downloads/30d	Another Approach to Package Installation	308.3K	0.11.1
s2 258.2K downloads/30d	Spherical Geometry Operators Using the S2 Geometry Library	258.2K	1.1.13
covr 158.2K downloads/30d	Test Coverage for Packages	158.2K	3.6.5
rversions 125K downloads/30d	Query 'R' Versions, Including 'r-release' and 'r-oldrel'	125K	3.0.0
rgl 66.6K downloads/30d	3D Visualization Using OpenGL	66.6K	1.3.36
git2r 33.7K downloads/30d	Provides Access to Git Repositories	33.7K	0.36.2
pbdZMQ 19.8K downloads/30d	Programming with Big Data -- Interface to 'ZeroMQ'	19.8K	0.3-14
x13binary 9.5K downloads/30d	Provide the 'x13ashtml' Seasonal Adjustment Binary	9.5K	1.1.61.2
blastula 7K downloads/30d	Easily Send HTML Email Messages	7K	0.3.6
httpgd 6.1K downloads/30d	A 'HTTP' Server Graphics Device	6.1K	2.1.4
unigd 5.7K downloads/30d	Universal Graphics Device	5.7K	0.2.0
fasterize 2.2K downloads/30d	Fast Polygon to Raster Conversion	2.2K	1.1.0
PROJ 2K downloads/30d	Generic Coordinate System Transformations Using 'PROJ'	2K	0.7.0
rgee 1.4K downloads/30d	R Bindings for Calling the 'Earth Engine' API	1.4K	1.1.8
ijtiff 1.4K downloads/30d	Comprehensive TIFF I/O with Full Support for 'ImageJ' TIFF Files	1.4K	3.2.0
vapour 1.1K downloads/30d	Access to the 'Geospatial Data Abstraction Library' ('GDAL')	1.1K	0.16.0
codemetar 646 downloads/30d	Generate 'CodeMeta' Metadata for R Packages	646	0.3.7
codemeta 569 downloads/30d	A Smaller 'codemetar' Package	569	0.1.1
geoflow 555 downloads/30d	Orchestrate Geospatial (Meta)Data Management Workflows and Manage FAIR Services	555	1.4.0
RcppCWB 508 downloads/30d	'Rcpp' Bindings for the 'Corpus Workbench' ('CWB')	508	0.6.11
RPublica 237 downloads/30d	ProPublica API Client	237	0.1.3
port4me 229 downloads/30d	Get the Same, Personal, Free 'TCP' Port over and over	229	0.7.1

Other Roles

1 package

Package	Title	Downloads	Version
rjade 366 downloads/30d	A Clean, Whitespace-Sensitive Template Language for Writing HTML	366	0.1.1

Bioconductor Packages

1 package

Package	Title	Category	Version
Rhtslib Bioc	HTSlib high-throughput sequencing library as an R package	software	3.8.0

Package repositories

Repositories of packages Jeroen Ooms maintains where an AI coding tool was found. Other people commit to these repositories too, so each line describes the repository, not Jeroen Ooms's own work.

jeroen/curl ↗(account: jeroen)
Packages: curl
- Claude Codefirst seen 2026-04-23
  Named in .Rbuildignore: .claude
  Pull request it wrote: opened by a project member
jeroen/jsonlite ↗(account: jeroen)
Packages: jsonlite
- Claude Codefirst seen on or before 2026-07-22
  Commits: at least 1 crediting it in the message
- GitHub Copilotfirst seen 2026-07-22
  Pull request: opened by its own account
jeroen/mongolite ↗(account: jeroen)
Packages: mongolite
- Claude Codefirst seen 2026-07-20
  Named in .Rbuildignore: .claude
  Pull request it wrote: opened by a project member
  Commits: at least 1 crediting it in the message
jeroen/V8 ↗(account: jeroen)
Packages: V8
- Claude Codefirst seen 2026-05-12
  Named in .Rbuildignore: .claude
- GitHub Copilotfirst seen 2026-04-17
  Pull request: opened by its own account
r-lib/fs ↗(organization: r-lib)
Packages: fs
- GitHub Copilotfirst seen 2026-03-03
  Pull request: opened by its own account
  Commits: 1 by its own account · at least 1 crediting it in the message
r-lib/gert ↗(organization: r-lib)
Packages: gert
- Claude Codefirst seen on or before 2026-03-23
  Commits: at least 1 crediting it in the message
- GitHub Copilotfirst seen 2026-03-03
  Pull request: opened by its own account
  Commits: 1 by its own account · at least 1 crediting it in the message
- Claude Code
  Pull requests: 1 from outside contributors, first on 2026-10-08, 1 from forks
r-lib/xml2 ↗(organization: r-lib)
Packages: xml2
- Claude Codefirst seen on or before 2026-06-22
  Named in .Rbuildignore: .claude
  Commits: at least 1 crediting it in the message
- GitHub Copilotfirst seen 2026-06-02
  Pull request: opened by its own account
  Commits: 1 by its own account
- Claude Code
  Pull requests: 1 from outside contributors, first on 2026-06-20, 1 from forks
r-rust/hellorust ↗(organization: r-rust)
Packages: hellorust
- Claude Codefirst seen on or before 2026-06-11
  Commits: at least 1 crediting it in the message
ropensci/fluidsynth ↗(organization: ropensci)
Packages: fluidsynth
- GitHub Copilotfirst seen 2026-03-09
  Pull request: opened by its own account
ropensci/hunspell ↗(organization: ropensci)
Packages: hunspell
- GitHub Copilotfirst seen 2026-02-12
  Pull request: opened by its own account
  Commits: 1 by its own account
ropensci/magick ↗(organization: ropensci)
Packages: magick
- GitHub Copilotfirst seen 2026-02-20
  Pull request: opened by its own account

Finding nothing does not mean no tool was used. How this is detected.

Roles

Maintains 54

Co-authors 15

Contributes 27

Impact

3.9K

packages depend on their work

dependency h-index

packages with 10+ dependents

Most depended on

jsonlite 1,761 deps

sf 887 deps

curl 495 deps

Frequent Collaborators

Hadley Wickham 11 pkgs

Jim Hester 8 pkgs

Scott Chamberlain 6 pkgs

Dewey Dunnington 5 pkgs

Kirill Müller 5 pkgs

Maëlle Salmon 5 pkgs

Michael Sumner 5 pkgs

Carl Boettiger 4 pkgs

+4 more

View collaborator network →

Career

On CRAN since Nov 2009 (16 years) · last active 3 days ago

On Bioconductor since Apr 2015 (11 years)

Links

ORCID Profile R-Universe CRAN Maintainer Search