📊 Excel to JSON
Convert XLSX to JSON — Free & Private
Convert Excel spreadsheet data into clean JSON format, perfect for web APIs, JavaScript applications, and data pipelines. Runs entirely in your browser — no upload needed.
✓ Free forever✓ No upload✓ No signup✓ Instant
Ready to convert your spreadsheet to JSON?
100% in your browser · Structured JSON output · Instant download
How to Convert XLSX to JSON
1
Open the Converter
Click "Convert Now" — opens on the Document tab with XLSX selected.
2
Upload Your XLSX
Drag & drop your Excel file or click Browse. Up to 50 MB.
3
Convert Instantly
Conversion runs entirely in your browser — no server upload.
4
Download JSON
Your structured JSON file downloads automatically, ready to use.
Why Convert XLSX to JSON?
- 🌐 Web-ready format — JSON is the standard for web APIs and JavaScript apps
- 📊 Structured data — each row becomes a JSON object with column keys
- 🔗 Easy to import — works with Node.js, Python, databases, and more
- 🔐 100% private — files stay on your device, never uploaded to any server
- 🆓 Free forever — no watermarks, no limits, no credit card
- ⚡ Instant — browser-based conversion, results in seconds
Features
100% Private
Files never leave your browser. Zero server uploads.
Instant
Conversion completes in seconds.
Free
No account, no fee, no watermarks. Ever.
Batch Convert
Convert multiple XLSX files to JSON in one go.
Full Data
All rows and columns preserved as JSON objects.
Mobile-Friendly
Works on any device — phone, tablet, desktop.
Frequently Asked Questions
Yes, completely free with no limits or watermarks. Convertlo runs entirely in your browser.
No. All conversion happens locally in your browser. Your files never leave your device.
Each row in your spreadsheet becomes a JSON object, with column headers as keys. The result is a JSON array of objects.
Yes. The conversion runs in your browser and can handle spreadsheets up to 50 MB in size.
Yes — enable Batch Convert mode to process multiple XLSX files at once.