JSON to CSV Converter Online (2026)
Convert JSON data to CSV format for Excel, Google Sheets, or database imports. Free, instant, and secure.
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How to Convert JSON to CSV (Live Example)
Converting JSON to CSV with our tool takes just three simple steps. Here's exactly what happens when you use it:
Paste Your JSON Data
Copy your JSON from an API response, file, or database export. Paste it into the editor above. You'll immediately see syntax highlighting—keys turn blue, strings turn green, and numbers turn orange. If there's a syntax error, you'll see a red underline showing exactly where the problem is.
Click "Convert to CSV"
Hit the green button. The converter parses your JSON, flattens any nested objects using dot notation (like user.address.city), and builds the CSV headers automatically from your data's keys.
View and Download Your CSV
The output panel appears showing your data in clean CSV format with the header row at the top. Each JSON object becomes one CSV row. Click "Copy" to grab it for pasting elsewhere, or "Download" to save a .csv file directly to your device.
Your Data Stays Private
Every conversion happens entirely in your web browser using client-side JavaScript. Your JSON never leaves your device—there's no server upload, no cloud processing, and no temporary file storage.
- No data transmitted to external servers
- No analytics tracking on your JSON content
- Safe for production data, API keys, and sensitive information
- Works offline once the page loads
Large File Support
Our tool safely handles JSON files up to 5–10 MB directly in your browser. Since all processing happens client-side, performance depends on your device's memory and browser capabilities.
- Desktop recommended for files over 5 MB—more RAM means smoother conversion
- Split large files if you experience slowdowns—use a JSON splitter tool first
- Chrome or Edge typically offer the best performance for large datasets
Common JSON Errors & How to Fix Them
Before converting, your JSON must be valid. Here are the most frequent mistakes developers encounter and how to resolve them quickly:
Missing Commas Between Properties
JSON requires commas between every key-value pair in an object and between items in an array.
{"name": "John" "age": 30}{"name": "John", "age": 30}Unquoted Object Keys
Unlike JavaScript objects, JSON keys must always be wrapped in double quotes.
{name: "John"}{"name": "John"}Trailing Commas
JSON does not allow a comma after the last item in an object or array.
{"name": "John",}{"name": "John"}Mismatched Brackets or Braces
Every opening bracket needs a matching closing bracket. Nested structures make this error easy to miss.
{"users": [{"name": "John"}}{"users": [{"name": "John"}]}Single Quotes Instead of Double
JSON strictly requires double quotes for strings. Single quotes will cause a parse error.
{'name': 'John'}{"name": "John"}Mobile-Friendly CSV Preview
Our converter is designed to work seamlessly on phones and tablets. The interface adapts to your screen size without sacrificing functionality:
- Horizontal scrolling tables – Wide CSV output scrolls left-right so you can view all columns without zooming out
- Touch-optimized buttons – Copy and Download buttons are large enough for easy tapping
- Responsive editor – The JSON input area resizes to fit your screen while maintaining readability
Compare JSON Conversion Formats
Not sure if CSV is the right format? Here's how it compares to other common data formats:
| Format | Best For | Tool |
|---|---|---|
| CSV | Spreadsheets, databases | Current page |
| XML | Legacy APIs, config files | JSON to XML |
| YAML | DevOps, CI/CD configs | JSON to YAML |
| SQL | Database inserts | JSON to SQL |
| HTML | Web display, reports | JSON to HTML |
Trust, Transparency & Expert Verification
This JSON to CSV Converter is independently developed and maintained by Raviraj Bhosale (Founder, jsonformatters.com) to provide developers and data analysts with a secure, character-perfect conversion environment.
Local Browser Conversion
Your data never leaves your machine. The conversion logic is executed entirely via client-side JavaScript, ensuring 100% data privacy.
RFC 4180 Standards
Our algorithm strictly follows the RFC 4180 technical specifications for CSV formatting, ensuring compatibility with Excel, SQL, and Python.
Technical Standards & Documentation:
Last Reviewed: February 2026 · Maintained by Raviraj Bhosale.
Expertise Behind the Tool
Hello! I’m a Web Developer and the founder of jsonformatters.com. My goal is to build tools for developers that are not only fast, but also completely secure and privacy-focused.
Keeping modern 2026 web standards in mind, I optimized this tool using React and Next.js to deliver the best possible performance.
I believe in complete transparency when it comes to my coding skills and projects. You can learn more about my professional experience by connecting with me on my LinkedIn Profile.
Frequently Asked Questions (FAQ)
How can I convert JSON to CSV online?
You can convert JSON to CSV online by pasting your JSON data into the converter, clicking the convert button, and instantly generating a CSV output.
How do I convert JSON to CSV for Excel?
Convert JSON to CSV using the online tool, then copy or download the CSV output and open it in Microsoft Excel for viewing and editing.
Can nested JSON be converted to CSV?
Yes, nested JSON objects and arrays can be converted to CSV by flattening the structure into rows and columns.
Why should I convert JSON to CSV?
CSV format is easier to read, edit, and analyze in spreadsheet tools compared to JSON, especially for reporting and data analysis.
Is JSON to CSV conversion free and safe?
Yes, JSON to CSV conversion is completely free, and your data is processed securely without being stored or shared.
Language & Encoding Support
Our converter fully supports UTF-8 encoding, ensuring accurate conversion of international text and special characters.