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JSON to CSV
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2 files, max 5M each
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About this tool
JSON to CSV is an online JSON to CSV tool offering free daily quota — no installation, no registration, ready to use. It intelligently converts JSON files to CSV tables, auto-detecting object arrays and 2D arrays, supporting multiple delimiters, batch processing, and one-click ZIP download. All processing runs locally in your browser for 100% privacy — your data is never uploaded to any server. Whether for data analysis, API integration, or data migration, it handles it with ease and professional, reliable results.
How to Use
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Upload JSON
Click the upload area or drag and drop JSON files into the box. .json format is supported, and you can upload multiple files at once.
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Choose Delimiter
In the parameter panel, choose the CSV delimiter (comma, semicolon, Tab, or pipe) to match your output needs.
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Process & Download
Click the "Start" button. When conversion finishes, download files individually or pack them into a ZIP.
Use Cases
- Data export: quickly turn API JSON responses into CSV for analysis in Excel
- Data migration: batch-convert JSON data into CSV for database imports or third-party systems
- Report generation: convert JSON statistics into CSV tables for reporting or sharing with non-technical users
Key Advantages
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Free Daily Quota
Free usage every day covers everyday data needs at zero cost; frequent or professional users can unlock more via a membership.
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Privacy & Security
All conversion runs entirely in your browser — files are never uploaded to any server, keeping your data safe.
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Smart Detection
Automatically recognizes object arrays, 2D arrays, and single objects — no manual setup needed to generate clean headers.
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Batch Processing
Supports batch upload of multiple files, with individual download or one-click ZIP packing for higher efficiency.
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Multiple Delimiters
Supports comma, semicolon, Tab, and pipe delimiters, flexibly adapting to different tools and regional conventions.
Delimiter Selection Guide
Different delimiters suit different scenarios. Choosing the right one makes your output fit your needs better.
| Delimiter | Best For | Notes |
|---|---|---|
| Comma , | Most universal — the default for most tools and platforms | Fields containing commas need quoting |
| Semicolon ; | Preferred in European regions to avoid conflicts with decimal points | May need manual delimiter selection in the target software |
| Tab | Great when fields contain many commas | Excel can recognize columns directly when pasted |
FAQ
A JSON to CSV tool converts JSON data into a CSV table online. It auto-detects structures like object arrays and 2D arrays, turning JSON fields into table rows and columns for use in Excel, databases, or third-party systems.
Upload a JSON file, choose a delimiter, and click Start. You can select comma, semicolon, Tab, or pipe as the delimiter, then download the CSV when done.
Object arrays, 2D arrays, and single objects are all supported. For example [{...}, {...}], [[...], ...], or {...} — the tool auto-detects and handles each one.
Everyday files are handled without issue. This tool runs locally in your browser, so capacity depends on your device. For very large files, we recommend uploading in batches for smooth conversion.
Yes — processing happens locally and is very fast. Moderate JSON files convert almost instantly, and batch processing makes it even more efficient.
Files are processed entirely in your browser and never uploaded to any server. All conversion happens on your device, keeping your data safe.
Free usage is granted every day, covering everyday needs at zero cost. No registration is required. When you need higher capacity, a membership unlocks more quota.
Yes, mobile is supported. This tool uses a responsive design, so it works on phones, tablets, and desktops — convert JSON to CSV anytime, anywhere.
The output formats differ. JSON to CSV produces lightweight table text ideal for data exchange and import. For richer formatting, try the JSON to Excel tool on this site.
Check that your JSON is valid. JSON5 or commented JSON is not supported. Confirm keys match and quotes are balanced, then re-upload.
No — the output includes a UTF-8 BOM header. Opening it directly in Excel shows Chinese correctly with no garbled characters.
Nested objects and arrays are serialized into JSON strings and placed in cells. This keeps your data intact for viewing and further processing.
Content last updated：2026-07-17
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