Excel to CSV Converter

Free Online Excel to CSV Converter (Privacy-First)

<div class="row">
    <div class="col-lg-8">
        <div class="card bg-dark border-secondary">
            <div class="card-body">
                <h4 class="card-title text-success mb-3">How it Works</h4>
                <p class="card-text text-muted mb-4">
                    Our tool uses advanced browser-based technologies to convert your files without ever sending them to a server. Here's the technical breakdown:
                </p>
                
                <div class="d-flex align-items-start mb-3">
                    <div class="me-3">
                        <span class="badge bg-success rounded-circle p-2">1</span>
                    </div>
                    <div>
                        <h5 class="text-light h6">Binary Parsing</h5>
                        <p class="text-muted small">
                            We use the <strong>SheetJS</strong> library to read the raw binary data of your uploaded Excel file directly in your browser's memory.
                        </p>
                    </div>
                </div>

                <div class="d-flex align-items-start mb-3">
                    <div class="me-3">
                        <span class="badge bg-success rounded-circle p-2">2</span>
                    </div>
                    <div>
                        <h5 class="text-light h6">Data Mapping</h5>
                        <p class="text-muted small">
                            The selected worksheet is parsed into a JSON object structure, which is then mapped to a standard Comma-Separated Values (CSV) string format.
                        </p>
                    </div>
                </div>

                <div class="d-flex align-items-start">
                    <div class="me-3">
                        <span class="badge bg-success rounded-circle p-2">3</span>
                    </div>
                    <div>
                        <h5 class="text-light h6">Local Download</h5>
                        <p class="text-muted small">
                            A <code>Blob</code> object is created from the CSV data, and a temporary download link is triggered, saving the file directly to your device.
                        </p>
                    </div>
                </div>

            </div>
        </div>
    </div>
    
    <div class="col-lg-4">
        <div class="card bg-dark border-secondary h-100">
            <div class="card-body">
                <h5 class="card-title text-light mb-3">Supported Formats</h5>
                <ul class="list-unstyled text-muted">
                    <li class="mb-2"><i class="fas fa-check text-success me-2"></i>Microsoft Excel (.xlsx)</li>
                    <li class="mb-2"><i class="fas fa-check text-success me-2"></i>Legacy Excel (.xls)</li>
                    <li class="mb-2"><i class="fas fa-check text-success me-2"></i>Multiple Sheets</li>
                </ul>
                
                <hr class="border-secondary my-4">
                
                <div class="text-center">
                    <i class="fas fa-shield-alt fa-3x text-success mb-3"></i>
                    <h5 class="text-light h6">Secure & Private</h5>
                    <p class="small text-muted">
                        No server uploads. No data retention. 100% Client-side.
                    </p>
                </div>
            </div>
        </div>
    </div>
</div>