JSON to Excel: free online, fast and secure
API responses and app exports come as JSON, but managers and clients want Excel. This tool converts JSON arrays into a table, flattening nested objects into columns like address.city.
Paste JSON or open a file, check the preview and validation message, then download XLSX or CSV.
How to use JSON to Excel
- Paste or open JSON. An array of objects works best.
- Check the preview. Rows and columns are shown, with any JSON errors explained.
- Download. Get Excel (.xlsx) or CSV.
Why use ConvertKaro JSON to Excel? Free, fast and secure
Here is what makes this JSON to Excel tool different from most websites.
100% Free
Every feature of this tool is free for everyone. We do not lock better quality or bigger files behind a paid plan.
Fast results
Your file is processed right inside your browser, so there is no upload or download queue. Most jobs finish in a second or two, even on a slow mobile connection.
Secure and private
Privacy is built in: the conversion runs locally with JavaScript, so your data is never sent to us or anyone else. Close the tab and everything is gone.
No signup, no watermark
No registration and no watermark, ever. What you download is exactly your file.
Works on every device
Works in Chrome, Safari, Edge and Firefox on Android, iPhone, Windows, Mac and Linux. No app to install.
Nested data flattened
Objects inside objects become dot-named columns automatically.
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 Excel
- Turning API responses into reports
- Exporting app data for non-technical teams
- Analysing Shopify or Razorpay JSON exports
- Sharing logs in readable form
- Preparing data for pivot tables
Tips for the best results
- If the JSON is an object containing an array, the first array is used.
- Arrays of simple values become comma-separated text.
- Fix errors with JSON Formatter.
- For CSV only, see JSON to CSV.
Good to know
Office and data files come in many formats. XLSX is Excel’s modern workbook format with sheets and formatting. CSV is plain text with values separated by commas, perfect for imports. JSON and XML are structured formats used by apps and APIs, and Markdown is a simple way to write formatted text. JSON to Excel converts between these formats on your device, so business data such as customer lists, invoices and sales reports never leaves your computer.
| 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 Excel keeps your documents and data files private
Most online converters upload your file to their server, process it there and send it back. That costs time, uses your data pack and means a copy of your file sits on someone else’s computer. JSON to Excel works differently: the page loads the tool into your browser, and your documents and data files are processed by your own phone or computer. The file never travels over the internet, so it cannot be leaked, stored or misused.
Using JSON to Excel on your phone
JSON to Excel is designed for small screens. Buttons are large, options are simple, and downloads save directly to your phone storage. On iPhone, downloaded files appear in the Files app under Downloads; on Android they go to the Downloads folder.
Who uses JSON to Excel?
JSON to Excel is used every day by people from many backgrounds, for example:
- 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
What JSON structure works?
An array of objects like [{"name":"A"},{"name":"B"}] is ideal.
What if objects have different keys?
All keys become columns; missing values are left empty.
Is my data uploaded?
No. Conversion is local.
Is JSON to Excel really free?
Yes. JSON to Excel on ConvertKaro is 100% free with no limits, no signup and no watermark. There is no paid version.
Is it safe to use JSON to Excel online?
It is one of the safest ways to do it, because nothing is uploaded. All processing happens locally on your device, and the files disappear when you close the page.
Does JSON to Excel work on mobile?
Yes. It works in Chrome and Safari on Android phones and iPhones, as well as on tablets and computers. No app is needed.
Is there a file size limit in JSON to Excel?
No upload means no server limit. The only limit is your device’s memory, which comfortably handles everyday files and even large batches.
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 Excel 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
You may also find these tools useful: Excel to JSON, JSON to CSV, JSON Formatter, CSV to Excel, CSV Viewer.