Convert your CSV files to JSON format online for free with FileShiftr. Instantly transform your data between formats. Perfect for developers and data analysts.
CSV (Comma-Separated Values) is a lightweight text format for storing tabular data, compatible with virtually any tool.
JSON is the most popular data interchange format, used in APIs, configuration files, and web applications.
Three simple steps. No software to install, no registration required for basic conversions.
Drag and drop your .csv file or click to browse. Max file size: 1 MB (free) or 3 MB (premium).
Choose JSON as the output format. The converter will process your file automatically.
Your converted .json file is ready in seconds. Click download and you're done.
Most conversions complete in seconds, not minutes.
Your files are processed securely and automatically deleted after conversion.
No software to install. Convert files from any device with a web browser.
Automate conversions with our developer-friendly API. Perfect for AI agents and workflows.
Convert up to 5 files per day on the free plan. No credit card required.
Common use cases for CSV to JSON conversion.
Transform data between formats for different tools and APIs.
Convert configuration files between popular formats.
Prepare data exports for import into other applications.
Convert CSV to JSON programmatically with a single API call.
curl -X POST https://fileshiftr.io/api/v1/convert/ \
-H "X-API-Key: cvt_your_key" \
-F "file=@input.csv" \
-F "output_format=json"
Click the "Convert CSV to JSON Now" button above, upload your CSV file, and download the converted JSON file. The entire process takes just seconds.
Yes! Free users can convert up to 5 files per day (max 1 MB each). Premium users get higher limits and access to all conversion types.
No. Your uploaded files and converted output are automatically deleted after processing. We do not store or share your data.
Absolutely. FileShiftr provides a REST API that lets you convert files programmatically. Sign up for a free API key and send a POST request to /api/v1/convert/ with your file.
Convert CSV to JSON in seconds. Free, fast, and secure.