Free Data Format Conversion Tools

Convert between CSV, JSON, and Excel XLSX formats with ease.
100% browser-based processing, zero data uploads, no registration required.

Data Format Conversion Made Simple

Free online tools for seamless data format conversion. Convert between CSV, JSON, and Excel XLSX formats instantly with our browser-based tools that prioritize your privacy.

CSV to JSON Converter

Transform CSV data into clean, properly formatted JSON with our powerful converter. Perfect for APIs, web applications, and databases.

JSON to CSV Converter

Convert JSON data to CSV format for easy spreadsheet integration. Handles complex nested structures with precision.

CSV to XLSX Converter

Convert CSV files to Excel XLSX format. Perfect for creating spreadsheets from plain text data.

XLSX to CSV Converter

Transform Excel XLSX files into CSV format. Ideal for making spreadsheet data more accessible.

100% Private & Secure

All processing happens directly in your browser. Your data never leaves your device or gets uploaded to any server.

Our Data Format Conversion Tools

Free online tools for converting between CSV, JSON and Excel XLSX formats

CSV to JSON Converter

Convert CSV files to JSON format with ease

100% browser-based processing

Your data never leaves your device. Free to use with no registration required.

JSON to CSV Converter

Transform JSON data to CSV spreadsheets

100% browser-based processing

Your data never leaves your device. Free to use with no registration required.

CSV to Excel XLSX Converter

Convert CSV files to Excel XLSX format

100% browser-based processing

Your data never leaves your device. Free to use with no registration required.

Excel XLSX to CSV Converter

Transform Excel XLSX files to CSV format

100% browser-based processing

Your data never leaves your device. Free to use with no registration required.

Why Choose Our Tools

Our data conversion tools are designed with privacy, simplicity, and efficiency in mind.

100% Browser-Based

All processing happens directly in your browser. Your data never leaves your device.

Privacy First

Zero data uploads to any server. Your sensitive information remains completely private.

No Registration

Use all tools immediately without creating an account or signing up.

Mobile Friendly

Responsive design that works perfectly on desktop, tablet, and mobile.

Always Free

All tools are completely free to use with no hidden costs or limitations.

Fast & Efficient

High-performance tools that deliver accurate results in seconds.