Convert CSV Files to JSON via API
Convert CSV files to structured JSON arrays of objects via REST API. Upload your CSV as multipart/form-data and receive a JSON array where each row becomes an object with keys from the CSV headers.
# Convert CSV file to JSON array
curl -X POST \
https://api.convertfilefast.com/v2/convert/csv-to-json \
-H "Authorization: Bearer YOUR_API_KEY" \
-F "file=@data.csv" \
-o output.json
# HTTP 200 OK — Content-Type: application/jsonAdvantages
Why use our API?
Complete and reliable solution for integration in any tech stack.
Structured JSON Output
CSV rows are converted to JSON objects with keys derived from header columns. Ready to use in any application.
Simple File Upload
Upload your CSV file as multipart/form-data. No configuration or schema definition required.
Header Detection
CSV headers are automatically detected and used as JSON object keys. All data types are preserved as strings.
Data Pipeline Integration
Integrate CSV-to-JSON conversion into data ingestion pipelines, APIs, and ETL workflows with a single call.
n8n Workflow Support
Convert CSV exports from databases or reports to JSON arrays in n8n for further processing and routing.
Zero Storage
CSV files are processed in memory and deleted immediately. The JSON result is returned directly in the response.
Start Converting CSV to JSON
Get your API key and convert CSV files to JSON arrays in seconds. Free plan includes 10 conversions per month.
No credit card. 10 free conversions on Free plan.