JSON to CSV: free online, fast and secure
CSV opens in Excel, Google Sheets and nearly every import tool. This converter turns JSON arrays into CSV with all keys as columns, flattening nested objects and quoting values correctly.
Choose comma, semicolon or tab separators and copy or download the result.
How to use JSON to CSV
- Paste or open JSON. Arrays of objects work best.
- Choose separator. Comma, semicolon or tab.
- Copy or download CSV. Output updates live.
Why use ConvertKaro JSON to CSV? Free, fast and secure
There are many JSON to CSV websites, but most of them upload your files, add watermarks or ask you to pay. Here is why this one is better.
100% Free
JSON to CSV on ConvertKaro costs nothing. There is no trial, no premium plan and no hidden limit, so you can use it as often as you like.
Fast results
Because nothing travels to a server, results appear almost instantly. Large files are limited only by the speed of your own phone or computer.
Secure and private
Nothing is uploaded. Sensitive files like Aadhaar, PAN, salary slips or contracts stay on your own phone or laptop the whole time.
No signup, no watermark
No account, no email and no watermark on your result. Open the page and start.
Works on every device
Designed for mobile first, so it works just as well on your phone as on a desktop computer.
Correct quoting
Values with commas, quotes or line breaks are escaped so the CSV opens cleanly.
ConvertKaro vs other online converters
| ConvertKaro | Typical online tool | |
|---|---|---|
| Price | Free forever, every feature | Free trial, then paid plans |
| Your files | Stay on your device | Uploaded to a server |
| Signup | Not needed | Often required |
| Watermark or ads on result | Never | Common on free plans |
| Speed | Instant, no upload wait | Depends on upload speed |
| Daily limits | None | Usually limited |
Common uses for JSON to CSV
- Exporting API data to spreadsheets
- Bulk uploads to marketing tools
- Sharing data with non-developers
- Database imports
- Report generation
Tips for the best results
- Nested arrays of objects are stored as JSON text in one cell.
- Use semicolons for European Excel versions.
- For a styled spreadsheet use JSON to Excel.
- Check the CSV in CSV Viewer.
Good to know
Most data problems come from small format differences: a semicolon instead of a comma, a missing header, text encoded incorrectly, or dates in different styles. JSON to CSV handles these details automatically, including UTF-8 encoding so Hindi and other Indian languages display correctly, and it shows a preview so you can check the result before downloading.
| Price | Free, no limits |
|---|---|
| Processing | On your device, no upload |
| Signup | Not required |
| Watermark | None |
| Works on | Android, iPhone, Windows, Mac, Linux |
| Category | Office & data tools |
How JSON to CSV keeps your documents and data files private
When you add a file to JSON to CSV, it is opened with your browser’s own engine, processed in memory and offered back to you as a download. ConvertKaro never receives a copy. This is why the tool is fast even on 4G, why there is no daily limit, and why it is safe for confidential documents and data files like ID proofs, bank documents, contracts and family photos.
Using JSON to CSV on your phone
On a phone, open this page in Chrome or Safari, tap the main button and pick files from your gallery, Files app or Google Drive. Results download straight to your phone, usually into the Downloads folder or Files app. You can also add this page to your home screen for one-tap access next time.
Who uses JSON to CSV?
Here are some of the people who find this tool most useful:
- Office staff working with Excel, Word and CSV exports
- Accountants converting reports and statements
- Developers and analysts moving data between systems
- Shop owners exporting orders and product lists
- Students and teachers preparing data for projects
Supported input: XLSX, XLS, ODS, CSV, TSV, DOCX, JSON, XML, YAML, Markdown and HTML.
Frequently asked questions
How are nested objects handled?
They become columns with dotted names, like address.city.
What if my JSON is invalid?
An error message shows what is wrong.
Can I open the CSV in Excel?
Yes, it is standard CSV.
Is JSON to CSV really free?
Yes, completely free. You can use it as many times as you want, and every option on the page is included at no cost.
Is it safe to use JSON to CSV online?
Yes. Your files are processed inside your own browser and are never uploaded to our servers, so nobody else can see them.
Does JSON to CSV work on mobile?
Yes, the tool is built mobile-first. Open this page on your phone, add your files and download the result directly.
Is there a file size limit in JSON to CSV?
There is no fixed limit set by us because files are not uploaded. Very large files depend on your device’s memory; most phones handle files of 100 MB or more without problems.
Will ConvertKaro add a watermark or ask me to sign up?
No. There is no watermark, no login and no email required. Your downloaded file is exactly your result.
Does JSON to CSV work offline?
Once this page has finished loading, the tool keeps working even if your internet connection drops, because all processing happens on your device.
Related free tools
People who use this tool often need these too: CSV to JSON, JSON to Excel, JSON Formatter, CSV Viewer, Excel to CSV.