JSON to CSV Converter — Bulk Support
Converters
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About This Tool
Free, private, serverless JSON to CSV converter with bulk support. Convert single JSON objects, arrays, or paste multiple JSON lines (NDJSON) to CSV instantly. Choose custom delimiters (comma, semicolon, tab, pipe), toggle headers, and flatten nested objects. Download as .csv or copy to clipboard. No data leaves your browser — 100% client-side conversion for developers, analysts, and data teams.
How to Use
- Paste your JSON — an array of objects, a single object, or one JSON object per line (bulk/NDJSON).
- Choose your delimiter (comma, semicolon, tab, or pipe).
- Toggle Include Headers and Flatten Nested Objects as needed.
- Click Convert to CSV.
- Copy the result or Download it as a .csv file.
Frequently Asked Questions
What JSON formats does this tool accept?
It accepts a JSON array of objects, a single JSON object, or multiple JSON objects on separate lines (NDJSON/JSON Lines). This makes it ideal for bulk conversion of large datasets.
Does it handle nested JSON objects?
Yes. Enable the "Flatten Nested Objects" option to convert nested structures like {"user": {"name": "Ali"}} into flat columns like "user.name". This ensures all data appears properly in your CSV.
What are the use cases for this tool?
Data migration between systems, preparing JSON API responses for spreadsheet analysis, bulk data export, converting database dumps to CSV for reporting, and transforming log files (NDJSON) into tabular format.
Can I change the CSV delimiter?
Yes. Choose from comma, semicolon, tab, or pipe delimiters. This is useful for European locales that use semicolons or for importing into specific software that requires a certain separator.
Is there a size limit?
No server-side limits since everything runs in your browser. Performance depends on your device, but it handles thousands of rows efficiently.
Guides & Tutorials
In-depth guides for every tool. Learn how to process your data privately, for free, right in your browser.
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