JSON to Excel is a free converter that turns JSON, NDJSON, and API responses into clean Excel spreadsheets - entirely in your browser, so your data is never uploaded to any server.
It's built for fidelity, not just speed: long numeric IDs and leading zeros are preserved exactly (no scientific notation, no dropped digits), while clean numbers stay numeric so you can still sum and sort. Nested JSON flattens into columns, arrays of objects expand into rows, and multiple top-level arrays become separate sheets. It also handles Indian GST return JSON (GSTR-2A / 2B / 1), which most converters mangle.
No signup, no payment, no upload. Open the page, paste or drop a file, download the Excel.
JSON to Excel converts JSON, NDJSON, and API responses into Excel spreadsheets directly in the browser with no upload.
- for
- Developers and analysts who need to turn raw JSON data into spreadsheets quickly.
- pricing
- free
works withExcelGoogle SheetsLibreOffice
Key features
6 features of JSON to Excel
- In-browser conversion — All processing happens locally; your data never leaves the device.
- Preserves data fidelity — Keeps long numeric IDs, leading zeros and numeric types intact.
- Nested JSON flattening — Nested objects become separate columns; arrays expand into rows.
- Multiple sheets support — Top-level arrays are exported as separate Excel sheets.
- Handles GST JSON — Special support for Indian GST return JSON (GSTR-2A/2B/1).
- Large file support — Processes files up to 15 MB without signup.
Use cases
- Convert API response logs into sortable Excel tables for analysis
- Export NDJSON export files to Excel for financial reporting
- Transform nested JSON data into flat columns for pivot tables
- Generate Excel sheets from Indian GST return JSON for accounting
JSON to Excel FAQ
Is any of my data sent to a server?+
No, all conversion happens in your browser and the data never leaves your device.
Do I need to create an account?+
No signup is required to use the converter.
What file size can I convert?+
Each file can be up to 15 MB; you can convert up to 5 files per batch.
Can I convert NDJSON files?+
Yes, the tool supports both JSON and NDJSON formats.
What output formats are available?+
The result is downloadable as an Excel (.xlsx) file, which can be opened in Excel, Google Sheets, or LibreOffice.
Summarized by DevHunt from jsontoexcel.in · Oct 6, 2026. Details may change; check the official site.
