Convert CSV to JSON
Convert CSV to JSON in seconds with this free online CSV to JSON converter
Accepts csv
CSV
CSV (Comma Separated Values) files are the most common format for storing tabular data. Values in a row are separated by commas and rows are separated by newlines.
CSQ files often start with a header row that has column names, but this is not required.
Each row in a CSV file must have the same number of values as the header row.
CSV files do no enforce types or a schema. This means that each column can have multiple types, which can make analysis difficult and compression inefficient.
Parquet files can be easier to analyze and compress better than CSV files.
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.
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How to Convert CSV to JSON

- Select your input CSV file
- Your CSV file will be converted to JSON
- Download your JSON file
- Click the View button to view your file
How to Convert CSV to JSON in Python
We can convert CSV to JSON in Python using Pandas or DuckDB
How to Convert CSV to JSON using Pandas
First, we need to install pandas
pip install pandas
Then we can load the CSV file into a dataframe
df = pd.read_csv('path/to/file.csv')
Finally, we can export the dataframe to the JSON format
df.to_json('path/to/file.json', index=False)
How to Convert CSV to JSON using DuckDB
First, we need to install duckdb for Python
pip install duckdb
The following DuckDB query will read a CSV file and output a JSON file
duckdb.sql("""COPY (select * from 'path/to/file.csv') TO 'path/to/file.json' (FORMAT 'json')""")
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