JSON to R Data Frame Converter
Paste JSON, get R data frames or lists — tibble, jsonlite::fromJSON — copy or download as .R
Options
You’re analyzing API data in R and need to convert a JSON response into a data frame. You could use jsonlite::fromJSON() directly, but for complex nested JSON, knowing the expected structure upfront helps you write cleaner analysis code.
What This Tool Does
Paste JSON and get R code instantly — either a tibble/data.frame definition for tabular JSON, or nested list structures for hierarchical data. Includes ready-to-use jsonlite::fromJSON() code with the correct parameters.
Everything runs in your browser. Your data never leaves your device.
When to Use This
- API data analysis — generate R code to parse and structure JSON API responses
- Data science workflows — convert JSON datasets into R data frames for analysis
- Shiny app development — define data structures for JSON-based APIs consumed by Shiny apps
- Statistical computing — transform JSON into R-native formats for modeling
Type Mapping
| JSON type | R type |
|---|---|
"hello" | character |
42 | integer |
3.14 | numeric |
true | logical |
null | NA |
[{...}] | data.frame / tibble |
{...} | list |
FAQ
Does this send my JSON to a server?
No. All processing happens entirely in your browser using JavaScript.
How are arrays of objects handled?
Arrays of uniform objects are converted to data.frame or tibble definitions with one column per field. Mixed-type arrays use list columns.