Serialize R Objects to JSON
Overview
Converts R objects to and from JavaScript Object Notation (JSON). The package provides a stable interface for reading JSON from strings, files, and connections, and for serializing common R objects, including vectors, lists, data frames, arrays, environments, and S4 objects. It also exposes parser handlers, callbacks, and S4 methods for applications that need customized JSON processing while preserving established RJSONIO behavior.
Installation
- Added bounds checks in the bundled UTF-8 conversion helper to avoid GCC 16
-Warray-boundsinstallation warnings on CRAN'sr-devel-linux-x86_64-debian-gcccheck flavor.
From NEWS.md in the release
Install
Health
- OK13 OK2026-08-05
- NOTE12 OK, 1 NOTE2026-08-01
- OK13 OK2026-05-17
- WARNING12 OK, 1 WARNING2026-05-13
- OK14 OK2026-03-10
Documentation
- Help pages
- 7
- Examples that run
- 83%5 run in a plain check · 1 never run
- Exported functions with examples
- 100%
- Documented parameters
- 97%
- Return-value docs
- 100%
- Help pages citing references
- 86%
- Advanced Customization HTML
- Choosing JSON Tools HTML
- Connections and Streaming HTML
- Parsing JSON HTML
- RJSONIO HTML
- Type Mapping HTML
- Writing JSON HTML
Downloads
Repository
Stars over time
Releases over time
10 development-tooling and community-health practices detected across 6 families in the upstream repository
Checks run against github.com/yaoxiangli/rjsonio on 2026-10-11.
The R CMD check workflow runs on Linux, macOS and Windows
GitHub Pages site last deployed 2026-05-15 · The repository has a site deploy workflow
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Dependencies
Installing RJSONIO adds no packages beyond those that come with R.
Show all 27 packagesHide all 27 packages
Code & Tests
People & History
Previously maintained by CRAN Team (0.3-1 to 1.3-1.11).
Pick two releases to compare their code metrics.
- 2.0.5Latest
- RR 4.6.0 released · 2026-04-24
- RR 4.5.0 released · 2025-04-11
- 2.0.02025-04-05 · diff ↗
- 1.3-1.112025-03-26 · diff ↗
- 1.3-1.102025-03-24 · diff ↗
- RR 4.4.0 released · 2024-04-24
- 1.3-1.92023-11-27 · diff ↗
- RR 4.3.0 released · 2023-04-21
- 1.3-1.82023-01-31 · diff ↗
- 1.3-1.72023-01-14 · diff ↗
- RR 4.2.0 released · 2022-04-22
- 1.3-1.62021-09-16 · diff ↗
- 1.3-1.52021-08-17 · diff ↗
- RR 4.1.0 released · 2021-05-18
- RR 4.0.0 released · 2020-04-24
Show 41 earlier eventsHide 41 earlier events
- 1.3-1.42020-01-15 · diff ↗
- 1.3-1.32019-10-03 · diff ↗
- 1.3-1.22019-06-04 · diff ↗
- RR 3.6.0 released · 2019-04-26
- 1.3-1.12019-03-03 · diff ↗
- orphanedOrphaned by its maintainer2018-11-12, after 4 years of no corrections
- 1.3-12018-11-12 · diff ↗
- RR 3.5.0 released · 2018-04-23
- RR 3.4.0 released · 2017-04-21
- RR 3.3.0 released · 2016-05-03
- RR 3.2.0 released · 2015-04-16
- 1.3-02014-07-28 · diff ↗
- 1.2-0.22014-04-29 · diff ↗
- 1.2-0.12014-04-26 · diff ↗
- RR 3.1.0 released · 2014-04-10
- RR 3.0.0 released · 2013-04-03
- 1.0-32013-03-28 · diff ↗
- 1.0-22013-03-20 · diff ↗
- 1.0-12012-10-10 · diff ↗
- 1.0-0
- RR 2.15.0 released · 2012-03-30
- 0.98-12012-02-06 · diff ↗
- 0.98-02012-02-02 · diff ↗
- 0.97-0
- RR 2.14.0 released · 2011-10-31
- 0.96-02011-10-23 · diff ↗
- 0.95-02011-09-05 · diff ↗
- 0.94-0
- 0.92-0
- 0.91-02011-08-15 · diff ↗
- 0.8-22011-08-03 · diff ↗
- 0.8-12011-07-30 · diff ↗
- 0.7-32011-06-06 · diff ↗
- 0.7-22011-05-10 · diff ↗
- 0.7-12011-04-30 · diff ↗
- RR 2.13.0 released · 2011-04-13
- 0.5-0
- 0.4-1
- RR 2.12.0 released · 2010-10-15
- 0.3-12010-10-04
- RR 2.11.0 released · 2010-04-22
Package metadata
- First published
- 2010-10-04
- Total releases
- 37 / 16 yrs
- License
- BSD_3_clause + file LICENSE OSI
- Download size
- 722 KB
Cite
Cite this package
Run in R for the authors' preferred citation:
citation("RJSONIO")This package has no citation file, so citation() returns this entry built from DESCRIPTION.
The repository also keeps a CITATION.cff.
Cite the R Observatory
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