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CSV to JSON Converter

Instantly convert between CSV and JSON formats

CSV Input
JSON Output

About CSV to JSON

Transform CSV spreadsheets into JSON format for use in APIs, databases, and web applications. Handles complex CSVs with custom delimiters and automatically detects headers.

Key Features

  • Auto-detect headers
  • Custom delimiters (comma, tab, pipe)
  • Pretty-print JSON output
  • Download as .json file
  • Handle large datasets

How It Works

  1. 1Paste CSV text or upload a .csv file.
  2. 2Adjust separator settings if needed.
  3. 3View the generated JSON immediately.
  4. 4Copy or download the JSON data.

Technical Specifications

Streaming CSV parserType inference (numbers/booleans)Error tolerant parsing

Performance Metrics

Instant client-side conversion
Handles large datasets (1MB+)
Zero server latency
Optimized for Chrome V8 engine

Frequently Asked Questions

Is my data sent to a server?
No, all conversion happens locally in your browser. Your data never leaves your device.
Can I convert JSON back to CSV?
Yes, this tool supports bidirectional conversion. Simply paste your JSON code and click 'Convert to CSV'.

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