Convert Excel to JSON
Free, instant, no sign-up
100% client-side processing · No data sent to any server · Unlimited conversions
Need to extract structured JSON from any document?
Parsli's AI extracts structured JSON from PDFs, images, invoices, and more. Define custom schemas, automate workflows, and integrate with your stack via API.
Need other conversions? Try our JSON to Excel, Excel to CSV, or PDF to Excel converters. Or see all free tools.
Why use this Excel to JSON converter
Private & secure
Your Excel file is processed entirely in your browser. Files never leave your device.
No sign-up required
Use it instantly in your browser. No account, no email, no nonsense.
Free & unlimited
No limits, no watermarks, no paywalls. Convert as many files as you want.
How it works
Upload your Excel file
Drag and drop your .xlsx or .xls file, or click to browse. Up to 50 MB.
Auto-convert to JSON
The first row becomes object keys. Each subsequent row becomes a JSON object in the array.
Copy or download
Copy the JSON to your clipboard or download it as a .json file. That's it.
Note: This tool converts the first sheet of your Excel file. The first row is used as JSON keys. For multi-sheet or complex extraction, try Parsli AI.
What this tool handles
Works great with
- ✓Spreadsheets with headers in the first row
- ✓Data exports from CRMs, ERPs, and databases
- ✓Contact lists, product catalogs, inventory sheets
- ✓Configuration data and lookup tables
- ✓Simple, flat data structures
For these, try Parsli AI
- Extracting data from PDFs and images
- Scanned documents requiring OCR
- Custom JSON schemas with validation
- Automated workflows (Sheets, Zapier, API)
- Batch processing hundreds of documents
Tips for better Excel to JSON conversion
Use clear header names in the first row
The first row of your spreadsheet becomes the JSON key names. Use descriptive, consistent names like "first_name" or "email" for clean JSON output.
Keep data in a single sheet
This tool converts the first sheet. If your data spans multiple sheets, consolidate it first or use Parsli for multi-sheet handling.
Remove empty rows and columns
Empty rows will create objects with empty values. Clean up your spreadsheet before converting for the best JSON output.
Numbers stay as numbers
Numeric cells are preserved as JSON numbers, not strings. Text cells remain as strings. This gives you properly typed JSON data.
Perfect for
Developers & Engineers
Quickly convert spreadsheet data into JSON for APIs, databases, and config files.
Data Analysts
Transform Excel exports into JSON format for data pipelines and visualization tools.
Product & Project Managers
Convert spreadsheet-based specs, lists, and trackers into structured JSON data.
Students & Researchers
Turn research data from Excel into JSON for academic tools and web applications.
Frequently asked questions
Is this tool really free?
Yes, completely free with no limits. There are no hidden charges, no watermarks, and no sign-up required. We built this as a free utility for the community.
Do you store or upload my Excel files?
No. Your Excel file is processed entirely in your browser using JavaScript. The file never leaves your device and is never sent to any server. Your data stays 100% private.
How does the Excel to JSON conversion work?
The tool reads the first sheet of your Excel file. The first row is used as the keys (property names) for each JSON object. Every subsequent row becomes an object in the resulting JSON array.
What if my Excel file has multiple sheets?
Currently, the tool converts the first sheet. If you need data from other sheets, you can copy the data into the first sheet or use Parsli's API for multi-sheet extraction.
Does it handle numbers and dates correctly?
Yes. Numbers remain as numeric values in JSON (not strings). Dates are converted based on how Excel stores them. For complex date formatting, you may want to check the output.
What Excel formats are supported?
Both .xlsx (modern Excel) and .xls (legacy Excel 97-2003) formats are supported.
What's the difference between this and Parsli?
This free tool does direct Excel-to-JSON conversion. Parsli is a full AI-powered document extraction platform — it handles PDFs, images, scanned documents, and lets you define custom schemas for exactly what data to extract.
Can I convert Excel to JSON on my phone?
Yes. This tool works on iPhone, iPad, and Android devices. Open the page in your mobile browser, upload your Excel file, and copy or download the JSON output.
What file size limit is there?
Up to 50 MB. Since everything runs in your browser, very large files may take longer to process depending on your device.
Is the JSON output minified or pretty-printed?
The JSON output is pretty-printed with 2-space indentation for readability. When you copy or download it, you get the same formatted output.
How to Convert Excel to JSON for Free
Converting Excel spreadsheets to JSON is a common task for developers, data analysts, and anyone working with web APIs. Whether you need to import spreadsheet data into a database, configure a web application, or feed data into a pipeline, a reliable Excel to JSON converter saves time and eliminates manual formatting.
Most online converters require you to upload your files to their servers, create an account, or pay for a subscription. This tool is different — it runs entirely in your browser using JavaScript. Your Excel file is processed on your own device and never sent anywhere. It's completely free, with no limits on conversions.
When Do You Need AI-Powered Document Extraction?
This free converter handles straightforward Excel-to-JSON conversion. But if you need to extract structured data from PDFs, images, scanned documents, or complex layouts — that's where AI-powered extraction comes in.
Parsli uses Google's Gemini AI to understand the full context of your documents. You define a schema — the exact fields you want extracted — and the AI pulls structured JSON from any document type. The extracted data flows automatically to Google Sheets, Zapier, Make, webhooks, or your own API.
Excel to JSON: Free Tool vs AI Extraction
| Feature | Free Tool | Parsli AI |
|---|---|---|
| Excel files (.xlsx/.xls) | Yes | Yes |
| PDFs & images | No | Yes |
| Custom JSON schemas | No | Yes |
| Multi-sheet support | First sheet | All sheets |
| Automated workflows | No | Yes |
| Google Sheets integration | No | Yes |
| API access | No | Yes |
| Price | Free | Free tier + paid plans |
Works everywhere — no install needed
Desktop
Chrome, Firefox, Safari, Edge
Mobile
iOS, Android
Tablet
iPad, Android tablets
Stop reformatting spreadsheet data by hand.
Parsli extracts structured data from any document — PDFs, images, scans, emails. Define custom schemas and automate with integrations. Free forever up to 30 pages/month.
No credit card required · 30 free pages/month