Convert JSON to Arrow

Convert JSON to Arrow in seconds with this free online JSON to Arrow converter

Accepts json

JSON

Java Script Object Notation (JSON) is a format that was designed for use with the Javascript Programming Language.

JSON files do not have a schema or required columns. Each row can have different field names and types. This can

make JSON files difficult to analyze.

Arrow

Apache Arrow (.arrow) is a format that was designed for storing tabular data in memory (RAM). It was not designed for storing data as files on disk.

Arrow enforces a schema. Which means that every value in a column must have the same value.

Arrow was designed to work well between different data analysis systems without needing to be serialised or deserialized.

Arrow is a binary data format, which means that it can be easily read by computers. But it cannot be read by people. The easiest way to view arrow data is to convert it to CSV first.

It can be best to convert Arrow data to Parquet before saving to disk. Arrow was not designed for storing data to disk, so can be inefficient and slow to query.

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How to Convert JSON to Arrow

Viewing converted data
  1. Select your input JSON file
  2. Your JSON file will be converted to Arrow
  3. Download your Arrow file
  4. Click the View button to view your file

How to Convert JSON to Arrow in Python

We can convert JSON to Arrow in Python using Pandas or DuckDB

How to Convert JSON to Arrow using Pandas

First, we need to install pandas

pip install pandas

Then we can load the JSON file into a dataframe

df = pd.read_json('path/to/file.json')

Finally, we can export the dataframe to the Arrow format

df.to_feather('path/to/file.arrow', index=False)

How to Convert JSON to Arrow using DuckDB

First, we need to install duckdb for Python

 pip install duckdb

The following DuckDB query will read a JSON file and output a Arrow file

duckdb.sql("""COPY (select * from 'path/to/file.json') TO 'path/to/file.arrow' (FORMAT 'arrow')""")

Tabular Data Converters

Need to convert some data? Check out the converters below.

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