convert CSV to JSON in Java

convert CSV to JSON in Java

Load a CSV file, manipulate and convert its data into JSON(JavaScript Object Notation) format programmatically. In this modern age of technology, most APIs prefer to communicate in JSON format because JSON is easy to parse, lightweight and compact. In this blog post, we will learn how to convert CSV to JSON in Java using a Java Excel library. This library is easy to install and offers a wide range of methods to achieve CSV to JSON conversion.

We will cover the following points in this article:

CSV to JSON Conversion API Installation

We are going to integrate this Java Excel library with a Java-based application. There is comprehensive documentation available regarding installation and usage.

However, you can either download the JAR files or follow the following Maven configurations:


How to Convert CSV to JSON in Java

Once the installation process is completed, we can jump to the code snippet that converts a CSV file to JSON format programmatically in Java. In fact, automating this conversion process will give a competitive edge to the business application.

We will follow the following steps:

  1. Create an object of the LoadOptions class that represents the options of loading the file.
  2. Load the CSV file by initiating an instance of the Workbook class.
  3. Access the last cell of the sheet by calling the getLastCell method.
  4. Set the ExportRangeToJsonOptions to indicate the options that export range to JSON.
  5. createRange method creates a range object from a range of cells.
  6. Export the range to a JSON file by invoking the exportRangeToJson method.
  7. Call the save method to convert CSV to JSON format.

You can see the output of CSV to JSON conversion in the image below:

CSV to JSON conversion

Get a Free License

You may get a free temporary license to try the API beyond evaluation limitations.

Summing up

This brings us to the end of this blog post, we have learned how to convert CSV to JSON in Java programmatically. We also have understood the code snippet to export CSV to JSON. In addition, you can visit the documentation of this Java Excel library to learn other features. Furthermore, you can find some other relevant links available in the “See Also” section below. Finally, please visit for the latest updates.

Ask a question

You can let us know about your questions or queries on our forum.


Can you convert CSV to JSON?

Using this Java Excel library, you can convert CSV to JSON programmatically in a Java application.

Which library can be used to process Excel document?

Install this Java Excel library to process and convert Excel documents into other popular file formats such as PDF, PPT and more.

How do I import a CSV file into JSON?

Use this JsonUtility.exportRangeToJson(range, options) method to convert CSV file to JSON format programmatically. Moreover, you can also visit the documentation to know about other methods.

See Also