Awesome extendr

A curated list of R packages that use extendr and are currently published on CRAN.

arcgis: ArcGIS Location Services Meta-Package

• Author: Josiah Parry
• URL: https://github.com/R-ArcGIS/arcgis/, https://developers.arcgis.com/r-bridge/
• Description: Provides easy installation and loading of core ArcGIS location services packages 'arcgislayers', 'arcgisutils', 'arcgisgeocode', and 'arcgisplaces'. Enabling developers to interact with spatial data and services from 'ArcGIS Online', 'ArcGIS Enterprise', and 'ArcGIS Platform'. Learn more about the 'arcgis' meta-package at https://developers.arcgis.com/r-bridge/.
• Downloads: 5376

arcgisgeocode: A Robust Interface to ArcGIS 'Geocoding Services'

• Author: Josiah Parry
• URL: https://github.com/r-arcgis/arcgisgeocode, https://developers.arcgis.com/r-bridge/api-reference/arcgisgeocode
• Description: A very fast and robust interface to ArcGIS 'Geocoding Services'. Provides capabilities for reverse geocoding, finding address candidates, character-by-character search autosuggestion, and batch geocoding. The public 'ArcGIS World Geocoder' is accessible for free use via 'arcgisgeocode' for all services except batch geocoding. 'arcgisgeocode' also integrates with 'arcgisutils' to provide access to custom locators or private 'ArcGIS World Geocoder' hosted on 'ArcGIS Enterprise'. Learn more in the 'Geocode service' API reference https://developers.arcgis.com/rest/geocode/api-reference/overview-world-geocoding-service.htm.
• Downloads: 6884

arcgisplaces: Search for POIs using ArcGIS 'Places Service'

• Author: Josiah Parry
• URL: https://github.com/R-ArcGIS/arcgisplaces, https://developers.arcgis.com/r-bridge/api-reference/arcgisplaces, https://r.esri.com/arcgisplaces
• Description: The ArcGIS 'Places service' is a ready-to-use location service that can search for businesses and geographic locations around the world. It allows you to find, locate, and discover detailed information about each place. Query for places near a point, within a bounding box, filter based on categories, or provide search text. 'arcgisplaces' integrates with 'sf' for out of the box compatibility with other spatial libraries. Learn more in the 'Places service' API reference https://developers.arcgis.com/rest/places/.
• Downloads: 26125

arcgisutils: ArcGIS Utility Functions

• Author: Josiah Parry
• URL: https://github.com/R-ArcGIS/arcgisutils, https://developers.arcgis.com/r-bridge/api-reference/arcgisutils/
• Description: Developer oriented utility functions designed to be used as the building blocks of R packages that work with ArcGIS Location Services. It provides functionality for authorization, Esri JSON construction and parsing, as well as other utilities pertaining to geometry and Esri type conversions. To support 'ArcGIS Pro' users, authorization can be done via 'arcgisbinding'. Installation instructions for 'arcgisbinding' can be found at https://developers.arcgis.com/r-bridge/installation/.
• Downloads: 17829

arcpbf: Process ArcGIS Protocol Buffer FeatureCollections

• Author: Josiah Parry
• URL: https://r.esri.com/arcpbf/, https://github.com/R-ArcGIS/arcpbf
• Description: Fast processing of ArcGIS FeatureCollection protocol buffers in R. It is designed to work seamlessly with 'httr2' and integrates with 'sf'.
• Downloads: 13210

astgrepr: Parse and Manipulate R Code

• Author: Etienne Bacher
• URL: https://github.com/etiennebacher/astgrepr, https://astgrepr.etiennebacher.com/
• Description: Parsing R code is key to build tools such as linters and stylers. This package provides a binding to the 'Rust' crate 'ast-grep' so that one can parse and explore R code.
• Downloads: 736

awdb: Query the USDA NWCC Air and Water Database REST API

• Author: Kenneth Blake Vernon
• URL: https://github.com/kbvernon/awdb, https://kbvernon.github.io/awdb/
• Description: Query the four endpoints of the 'Air and Water Database (AWDB) REST API' maintained by the National Water and Climate Center (NWCC) at the United States Department of Agriculture (USDA). Endpoints include data, forecast, reference-data, and metadata. The package is extremely light weight, with 'Rust' via 'extendr' doing most of the heavy lifting to deserialize and flatten deeply nested 'JSON' responses. The AWDB can be found at https://wcc.sc.egov.usda.gov/awdbRestApi/swagger-ui/index.html.
• Downloads: 1064

b64: Fast and Vectorized Base 64 Engine

• Author: Josiah Parry
• URL: https://extendr.github.io/b64/, https://github.com/extendr/b64
• Description: Provides a fast, lightweight, and vectorized base 64 engine to encode and decode character and raw vectors as well as files stored on disk. Common base 64 alphabets are supported out of the box including the standard, URL-safe, bcrypt, crypt, 'BinHex', and IMAP-modified UTF-7 alphabets. Custom engines can be created to support unique base 64 encoding and decoding needs.
• Downloads: 39468

ciflyr: Reachability-Based Primitives for Graphical Causal Inference

• Author: Marcel Wienöbst
• URL: https://cifly.pages.dev/, https://github.com/mwien/CIfly
• Description: Provides a framework for specifying and running flexible linear-time reachability-based algorithms for graphical causal inference. Rule tables are used to encode and customize the reachability algorithm to typical causal and probabilistic reasoning tasks such as finding d-connected nodes or more advanced applications. For more information, see Wienöbst, Weichwald and Henckel (2025) doi:10.48550/arXiv.2506.15758.
• Downloads: 192

fcl: A Financial Calculator

• Author: Xianying Tan
• URL: https://github.com/shrektan/fcl, https://shrektan.github.io/fcl/
• Description: A financial calculator that provides very fast implementations of common financial indicators using 'Rust' code. It includes functions for bond-related indicators, such as yield to maturity ('YTM'), modified duration, and Macaulay duration, as well as functions for calculating time-weighted and money-weighted rates of return (using 'Modified Dietz' method) for multiple portfolios, given their market values and profit and loss ('PnL') data. 'fcl' is designed to be efficient and accurate for financial analysis and computation. The methods used in this package are based on the following references: https://en.wikipedia.org/wiki/Modified_Dietz_method, https://en.wikipedia.org/wiki/Time-weighted_return.
• Downloads: 180179

fio: Friendly Input-Output Analysis

• Author: Alberson da Silva Miranda
• URL: https://albersonmiranda.github.io/fio/, https://github.com/albersonmiranda/fio
• Description: Simplifies the process of importing and managing input-output matrices from 'Microsoft Excel' into R, and provides a suite of functions for analysis. It leverages the 'R6' class for clean, memory-efficient object-oriented programming. Furthermore, all linear algebra computations are implemented in 'Rust' to achieve highly optimized performance.
• Downloads: 29291

heck: Highly Performant String Case Converter

• Author: Josiah Parry
• URL: https://github.com/DyfanJones/heck, https://dyfanjones.r-universe.dev/heck
• Description: Provides a case conversion between common cases like CamelCase and snake_case. Using the 'rust crate heck' https://github.com/withoutboats/heck as the backend for a highly performant case conversion for 'R'.
• Downloads: 4417

orbweaver: Fast and Efficient Graph Data Structures

• Author: ixpantia, SRL
• URL: https://github.com/ixpantia/orbweaver-r
• Description: Seamlessly build and manipulate graph structures, leveraging its high-performance methods for filtering, joining, and mutating data. Ensures that mutations and changes to the graph are performed in place, streamlining your workflow for optimal productivity.
• Downloads: 2973

rbm25: A Light Wrapper Around the 'BM25' 'Rust' Crate for Okapi BM25 Text Search

• Author: David Zimmermann-Kollenda
• URL: https://davzim.github.io/rbm25/, https://github.com/DavZim/rbm25/
• Description: BM25 is a ranking function used by search engines to rank matching documents according to their relevance to a user's search query. This package provides a light wrapper around the 'BM25' 'rust' crate for Okapi BM25 text search. For more information, see Robertson et al. (1994) https://trec.nist.gov/pubs/trec3/t3_proceedings.html.
• Downloads: 1275

rshift: Paleoecology Functions for Regime Shift Analysis

• Author: Alex H. Room
• URL: https://github.com/alexhroom/rshift
• Description: Contains a variety of functions, based around regime shift analysis of paleoecological data. Citations: Rodionov() from Rodionov (2004) doi:10.1029/2004GL019448 Lanzante() from Lanzante (1996) doi:10.1002/(SICI)1097-0088(199611)16:11%3C1197::AID-JOC89%3E3.0.CO;2-L Hellinger_trans from Numerical Ecology, Legendre & Legendre (ISBN 9780444538680) rolling_autoc from Liu, Gao & Wang (2018) doi:10.1016/j.scitotenv.2018.06.276 Sample data sets lake_data & lake_RSI processed from Bush, Silman & Urrego (2004) doi:10.1126/science.1090795 Sample data set January_PDO from NOAA: https://www.ncei.noaa.gov/access/monitoring/pdo/.
• Downloads: 31792

rtiktoken: A Byte-Pair-Encoding (BPE) Tokenizer for OpenAI's Large Language Models

• Author: David Zimmermann-Kollenda
• URL: https://davzim.github.io/rtiktoken/, https://github.com/DavZim/rtiktoken/
• Description: A thin wrapper around the tiktoken-rs crate, allowing to encode text into Byte-Pair-Encoding (BPE) tokens and decode tokens back to text. This is useful to understand how Large Language Models (LLMs) perceive text.
• Downloads: 3218

SQLFormatteR: Format SQL Queries

• Author: Morgan Durand
• URL: https://dataupsurge.github.io/SQLFormatteR/, https://github.com/dataupsurge/SQLFormatteR
• Description: A convenient interface for formatting 'SQL' queries directly within 'R'. It acts as a wrapper around the 'sql_format' Rust crate. The package allows you to format 'SQL' code with customizable options, including indentation, case formatting, and more, ensuring your 'SQL' queries are clean, readable, and consistent.
• Downloads: 1207

tergo: Style Your Code Fast

• Author: Konrad Pagacz
• URL: https://rtergo.pagacz.io, https://github.com/kpagacz/tergo
• Description: Provides a set of functions that allow users for styling their R code according to the 'tidyverse' style guide. The package uses a native Rust implementation to ensure the highest performance. Learn more about 'tergo' at https://rtergo.pagacz.io.
• Downloads: 1601

tomledit: Parse, Read, and Edit 'TOML'

• Author: Josiah Parry
• URL: https://extendr.github.io/tomledit/, https://github.com/extendr/tomledit
• Description: A toolkit for working with 'TOML' files in R while preserving formatting, comments, and structure. 'tomledit' enables serialization of R objects such as lists, data.frames, numeric, logical, and date vectors.
• Downloads: 1937

unsum: Reconstruct Raw Data from Summary Statistics

• Author: Lukas Jung
• URL: https://github.com/lhdjung/unsum, https://lhdjung.github.io/unsum/
• Description: Reconstructs all possible raw data that could have led to reported summary statistics. Provides a wrapper for the 'Rust' implementation of the 'CLOSURE' algorithm.
• Downloads: 258

xactonomial: Inference for Functions of Multinomial Parameters

• Author: Michael C Sachs
• URL: https://sachsmc.github.io/xactonomial/
• Description: We consider the problem where we observe k vectors (possibly of different lengths), each representing an independent multinomial random vector. For a given function that takes in the concatenated vector of multinomial probabilities and outputs a real number, this is a Monte Carlo estimation procedure of an exact p-value and confidence interval. The resulting inference is valid even in small samples, when the parameter is on the boundary, and when the function is not differentiable at the parameter value, all situations where asymptotic methods and the bootstrap would fail. For more details see Sachs, Fay, and Gabriel (2025) doi:10.48550/arXiv.2406.19141.
• Downloads: 414

ymd: Parse 'YMD' Format Number or String to Date

• Author: Xianying Tan
• URL: https://shrektan.github.io/ymd/, https://github.com/shrektan/ymd
• Description: Convert 'YMD' format number or string to Date efficiently, using Rust's standard library. It also provides helper functions to handle Date, e.g., quick finding the beginning or end of the given period, adding months to Date, etc.
• Downloads: 7761

zoomerjoin: Superlatively Fast Fuzzy Joins

• Author: Beniamino Green
• URL: https://beniamino.org/zoomerjoin/, https://github.com/beniaminogreen/zoomerjoin
• Description: Empowers users to fuzzily-merge data frames with millions or tens of millions of rows in minutes with low memory usage. The package uses the locality sensitive hashing algorithms developed by Datar, Immorlica, Indyk and Mirrokni (2004) doi:10.1145/997817.997857, and Broder (1998) doi:10.1109/SEQUEN.1997.666900 to avoid having to compare every pair of records in each dataset, resulting in fuzzy-merges that finish in linear time.
• Downloads: 4059