Convert JSON to Arrow
Convert JSON to Arrow in seconds with this free online JSON to Arrow converter
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.
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
- Select your input JSON file
- Your JSON file will be converted to Arrow
- Download your Arrow file
- 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
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')""")