CSV to JSON Converter
Upload a CSV file and convert it to JSON. Choose between an array of objects or a columnar object format. Preview and download instantly.
100% In-Browser Processing. Your files never leave your device.
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About this tool
Converting CSV to JSON transforms a flat tabular spreadsheet file into a structured JSON format that can be consumed by web APIs, JavaScript applications, NoSQL databases, and data processing tools. The CSV header row becomes the keys of each JSON object, and each data row becomes one object in the resulting JSON array. This conversion is one of the most common data format transformations in web development and data engineering.