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CSV to JSON

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Convert CSV files or pasted CSV data to JSON format. Supports custom delimiters and headers. Perfect for data transformation and API work.

Used 360K+ timesSpeed: ~instantAuto-deleted after 1 hour

CSV to JSON Converter

Convert CSV data to JSON format.

Delimiter:
JSON will appear here
All processing runs locally in your browser — your data never leaves your device.

How to use CSV to JSON

  1. Paste your CSV data

    Copy and paste CSV data with or without headers. Supports comma, semicolon, or tab delimiters.

  2. Convert to JSON

    Click Convert to transform your CSV into a clean JSON array.

  3. Copy or download

    Copy the JSON to clipboard or download it as a .json file.

Frequently asked questions

Is this tool completely free?

Yes — this tool is free with no account required. Free users get up to 50 MB per file. Premium users unlock higher limits and batch processing.

Are my files stored after processing?

No. All uploaded files and processed outputs are automatically deleted from our servers within 1 hour of processing. We never store, sell, or share your data.

How secure is my data?

All file transfers use TLS 1.3 encryption. Files are processed in isolated sandboxes and immediately discarded. We are GDPR-compliant and do not use your files for any purpose beyond processing.

What happens if processing fails?

If processing fails, no data is retained and you are not charged. Simply re-upload your file and try again. If the problem persists, contact our support team.

Can I use this on mobile?

Yes! ToolHive is fully responsive and works on any modern device — phone, tablet, or desktop. All features are touch-friendly.

Your privacy is our priority

All files are transferred over TLS 1.3 encrypted connections and processed in isolated environments. Files are automatically deleted within 1 hour — we never store, share, or train AI models on your data.

TLS 1.3 encryptedEU / US serversGDPR compliantNo account needed