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Convert CSV files to JSON format for APIs, web apps, and modern data processing.
Convert Now →Convert CSV to Excel XLS format compatible with older versions of Microsoft Excel (97-2003).
Convert Now →Convert CSV to modern Excel XLSX format for Excel 2007 and later versions.
Convert Now →Built with privacy, speed, and simplicity in mind.
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Your files never leave your device. All conversion happens locally in your browser.
Convert files up to 20MB with no restrictions. No account required, no hidden fees.
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A file format converter is a tool that transforms data from one file format to another. Whether you need to convert CSV to JSON for API integration, transform JSON to CSV for spreadsheet analysis, or convert CSV to Excel for better data visualization, our converters handle it all seamlessly.
Converting CSV (Comma-Separated Values) files to JSON (JavaScript Object Notation) is essential for modern web development and API integration. Our CSV to JSON converter preserves your data structure, handles headers correctly, and produces clean, valid JSON that's ready to use in any application.
Transform your CSV files into Excel spreadsheets with one click. We support both XLS (Excel 97-2003) and XLSX (Excel 2007+) formats. Perfect for creating professional reports, sharing data with colleagues, or performing advanced Excel analysis on your CSV data.
Need to import JSON data into Excel, Google Sheets, or a database? Our JSON to CSV converter flattens your JSON arrays into tabular CSV format, making it easy to work with structured data in any spreadsheet application or data analysis tool.
Unlike other online converters that upload your files to remote servers, our tool processes everything locally in your browser. This means your sensitive data stays private, conversions happen instantly, and you're not limited by file upload restrictions or slow server processing times.
All conversions are free, unlimited, and require no registration. Start converting your files now!
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