JSON to Excel / CSV Converter
Convert JSON data to .xlsx or .csv in seconds — no upload, no signup
Paste any JSON array or object, pick columns, preview the table, and download as Excel (.xlsx) or CSV. Runs entirely in your browser — your data never leaves your device.
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What is a JSON to Excel / CSV Converter?
Finance teams, developers, and accountants often receive data in JSON format from APIs, databases, or automation tools — but need it in Excel for reporting, analysis, or sharing with clients. Switching between tools is slow and often requires server-side conversion or paid SaaS subscriptions.
This free JSON to Excel converter lets you paste any valid JSON directly in your browser, preview it as a table, choose exactly which columns to include, rename the file, and download as a native .xlsx (Excel) or .csv file — all in seconds, with no signup and no data ever leaving your device.
Nested objects are automatically flattened using dot notation (e.g. "address.city"), and arrays within objects are joined as comma-separated strings. This handles most real-world API responses without any preprocessing.
Why use this JSON to Excel / CSV Converter
Built for Indians, by Indians. Every number, every formula, every slab — tuned to FY 2026-27 reality.
Column picker
Toggle individual columns on/off. Only export what you need — ideal for trimming large API responses.
Auto-flatten
Nested objects are flattened automatically using dot notation. No manual preprocessing required.
.xlsx output
Download as a native Excel workbook (.xlsx) that opens directly in Excel, Google Sheets, or Numbers.
CSV fallback
Prefer CSV? Switch to .csv format with one click — no re-parsing needed.
100% private
All processing runs in your browser. Your JSON data never touches any server.
Live preview
See the parsed table before downloading. Paginated for large datasets.
Using the JSON to Excel / CSV Converter in 4 steps
No onboarding, no signup. Answer three fields and the numbers update live.
Paste your JSON
Copy JSON from your API response, database export, or any source and paste it into the text area.
Review the preview
The tool parses and displays your data as a table. Check that the columns and rows look correct.
Select columns
Click column tags to toggle them on or off. Only selected columns will appear in the exported file.
Download
Set a filename, pick .xlsx or .csv, and click Download. File saves instantly — no wait, no email.
Tips to get the most out of it
JSON must be a valid array of objects or a single object. Use a JSON validator (jsonlint.com) if you get a parse error.
For large JSON responses from APIs, paste only the relevant subset. Most API responses have a "data" array — extract just that before pasting.
Nested keys are flattened with dot notation (address.city). If you have deep nesting, consider pre-processing with jq or a quick script to get the shape you need.
Use .xlsx when opening in Excel or sharing with non-technical stakeholders. Use .csv for importing into databases, BI tools, or scripts.
After downloading, use Excel's "Format as Table" (Ctrl+T) to enable filters and sorting on your exported data.
Real-world scenarios
How Indians actually use this converter — concrete inputs, concrete outcomes.
GST return data from ERP API
Finance team exports monthly GST data as JSON from their ERP system. Paste the array, deselect internal system fields (id, _rev), and download as .xlsx for the CA to review.
Customer list from CRM webhook
Automation sends a JSON payload of new leads. Paste it here, keep only name/email/phone/source columns, and download as .csv to import into a mailing tool.
MongoDB / Firestore export
Database exports are typically JSON arrays. Paste the exported file contents, flatten nested address or metadata objects, and get a clean Excel sheet for reporting.
Frequently Asked Questions
Still have a question? Our team replies within a business day.
An array of objects (most common API format), a single object, or an array of primitives. Nested objects are flattened with dot notation. Arrays inside objects are joined as comma-separated strings.
No hard limit — the browser handles the processing. Tens of thousands of rows work fine. For very large datasets (500K+ rows), Excel itself has a 1,048,576 row limit per sheet.
No. All processing happens in your browser using JavaScript. Your JSON is never uploaded anywhere. Close the tab and the data is gone.
Common causes: trailing commas (not valid JSON), single quotes instead of double quotes, missing quotes around keys, or comments in the JSON (not allowed in standard JSON). Use jsonlint.com to identify the exact error line.
This tool converts JSON → Excel only. To go the other direction (Excel → JSON), use a tool like convertcsv.com or write a quick script using pandas (Python) or XLSX.js.
.xlsx is the native Excel format — it preserves number formatting, supports special characters, and opens directly in Excel. .csv is plain text with comma-separated values — simpler, universally supported, but loses formatting. Use .xlsx for human readers and .csv for system imports.
Want expert help beyond the converter? Talk to our team.
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