IPv4 to IPv6 Converter - FreeToolsCraft
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IPv4 to IPv6 Converter

Convert IPv4 addresses to IPv6 format instantly. No data leaves your browser.

Enter IPv4 Address

Enter a valid IPv4 address (format: xxx.xxx.xxx.xxx where xxx is 0-255)

How It Works

6to4 Conversion

Uses 6to4 addressing (2002::/16) to map IPv4 to IPv6 format.

Complete Privacy

All processing in your browser. Zero data sent to servers.

Multiple Formats

Export results in TXT, HTML, CSV, or PDF format.

Your privacy is protected! No data is transmitted or stored.

Tool by freetoolscraft.com

`; const blob = new Blob([content], { type: 'text/html;charset=utf-8' }); saveAs(blob, `ipv4-to-ipv6-${conversionResults.originalIPv4.replace(/\./g, '-')}-freetoolscraft.html`); } // Download as CSV file function downloadCSV() { if (!conversionResults.originalIPv4) { alert('No results to download. Please convert an IPv4 address first.'); return; } const content = `Field,Value Generated By,freetoolscraft.com Website,https://freetoolscraft.com Tool,IPv4 to IPv6 Converter Original IPv4,${conversionResults.originalIPv4} Expanded IPv6,${conversionResults.expandedIPv6} Hexadecimal Representation,${conversionResults.hexRepresentation} Binary Representation,${conversionResults.binaryRepresentation} Explanation,"This IPv6 address is in the 6to4 address space, which allows IPv6 packets to be transmitted over IPv4 networks." Generated Date,${new Date().toLocaleDateString()} Generated Time,${new Date().toLocaleTimeString()}`; const blob = new Blob([content], { type: 'text/csv;charset=utf-8' }); saveAs(blob, `ipv4-to-ipv6-${conversionResults.originalIPv4.replace(/\./g, '-')}-freetoolscraft.csv`); } // Download as PDF file function downloadPDF() { if (!conversionResults.originalIPv4) { alert('No results to download. Please convert an IPv4 address first.'); return; } // Create PDF using jsPDF const { jsPDF } = window.jspdf; const doc = new jsPDF(); // Title doc.setFontSize(20); doc.setTextColor(44, 62, 80); doc.text("IPv4 to IPv6 Conversion Results", 20, 20); // Website name doc.setFontSize(12); doc.setTextColor(102, 126, 234); doc.text("Generated by: freetoolscraft.com", 20, 30); // Line under title doc.setDrawColor(52, 152, 219); doc.setLineWidth(0.5); doc.line(20, 35, 190, 35); // Conversion details doc.setFontSize(12); doc.setTextColor(0, 0, 0); let yPos = 45; // Original IPv4 doc.setFont("helvetica", "bold"); doc.text("Original IPv4:", 20, yPos); doc.setFont("helvetica", "normal"); doc.text(conversionResults.originalIPv4, 80, yPos); yPos += 10; // Expanded IPv6 doc.setFont("helvetica", "bold"); doc.text("Expanded IPv6:", 20, yPos); doc.setFont("helvetica", "normal"); doc.text(conversionResults.expandedIPv6, 80, yPos); yPos += 10; // Hexadecimal Representation doc.setFont("helvetica", "bold"); doc.text("Hexadecimal:", 20, yPos); doc.setFont("helvetica", "normal"); doc.text(conversionResults.hexRepresentation, 80, yPos); yPos += 10; // Binary Representation doc.setFont("helvetica", "bold"); doc.text("Binary:", 20, yPos); doc.setFont("helvetica", "normal"); // Handle binary representation (might be long) const binaryText = conversionResults.binaryRepresentation; if (binaryText.length > 50) { // Split binary into two lines if too long const midpoint = Math.floor(binaryText.length / 2); const firstHalf = binaryText.substring(0, midpoint); const secondHalf = binaryText.substring(midpoint); doc.text(firstHalf, 80, yPos); yPos += 7; doc.text(secondHalf, 80, yPos); yPos += 10; } else { doc.text(binaryText, 80, yPos); yPos += 10; } // Explanation yPos += 5; doc.setFont("helvetica", "bold"); doc.text("Explanation:", 20, yPos); doc.setFont("helvetica", "normal"); const explanation = "This IPv6 address is in the 6to4 address space, which allows IPv6 packets to be transmitted over IPv4 networks."; const splitExplanation = doc.splitTextToSize(explanation, 150); doc.text(splitExplanation, 20, yPos + 7); // Footer const pageHeight = doc.internal.pageSize.height; doc.setFontSize(10); doc.setTextColor(100, 100, 100); doc.text("Generated by freetoolscraft.com - Free Online Tools", 20, pageHeight - 30); doc.text(`Date: ${new Date().toLocaleDateString()} | Time: ${new Date().toLocaleTimeString()}`, 20, pageHeight - 25); doc.text("Tool: IPv4 to IPv6 Converter | Website: https://freetoolscraft.com", 20, pageHeight - 20); // Save the PDF doc.save(`ipv4-to-ipv6-${conversionResults.originalIPv4.replace(/\./g, '-')}-freetoolscraft.pdf`); } // Event Listeners convertBtn.addEventListener('click', handleConversion); clearBtn.addEventListener('click', clearAll); detectIpBtn.addEventListener('click', detectUserIP); ipv4Input.addEventListener('keyup', (event) => { if (event.key === 'Enter') { handleConversion(); } }); // Download buttons copyBtn.addEventListener('click', copyToClipboard); txtBtn.addEventListener('click', downloadTXT); htmlBtn.addEventListener('click', downloadHTML); csvBtn.addEventListener('click', downloadCSV); pdfBtn.addEventListener('click', downloadPDF); // Auto-convert as user types (with debounce) let debounceTimer; ipv4Input.addEventListener('input', () => { clearTimeout(debounceTimer); debounceTimer = setTimeout(() => { const ipv4 = ipv4Input.value.trim(); if (ipv4 && validateIPv4(ipv4)) { handleConversion(); } }, 500); }); // Initialize with an example (optional) window.addEventListener('DOMContentLoaded', () => { // You can uncomment this to preload an example // ipv4Input.value = "192.168.1.1"; });

How To Use IPv4 to IPv6 Converter Tool

📖 Quick Start Guide

Step 1: Enter IPv4 Address

  • Type any valid IPv4 address in the input field (e.g., 192.168.1.1)

  • Format must be: xxx.xxx.xxx.xxx where each xxx is 0-255

  • Pro Tip: Click “🌐 Detect My IP” to automatically detect and insert your IP address

Step 2: Convert

  • Click the “Convert” button or press Enter

  • Results appear instantly with:

    • Original IPv4 address

    • Expanded IPv6 format

    • Hexadecimal representation

    • Binary representation

    • 6to4 addressing explanation

Step 3: Use Results

  • Copy: Click “📋 Copy Result” to copy all conversion data to clipboard

  • Download: Choose from multiple formats:

    • 📄 TXT: Plain text format for documentation

    • 🌐 HTML: Web-ready file with formatting

    • 📊 CSV: Spreadsheet-friendly format

    • 📘 PDF: Professional document with branding

🔍 Features Explained

Automatic IP Detection

  • Click “🌐 Detect My IP” to auto-fill your public IP address

  • Works using secure, client-side APIs

  • Shows local IP if public detection fails

  • Privacy Note: Detection happens entirely in your browser

Real-time Conversion

  • Results update automatically as you type

  • Invalid formats show immediate error prompts

  • No page refresh needed

Multiple Export Options

  • All files include freetoolscraft.com branding

  • Files are ready for documentation, reports, or sharing

  • No login or registration required

Privacy Protection

  • ✅ 100% client-side processing

  • ✅ No data sent to servers

  • ✅ No tracking or analytics

  • ✅ Complete privacy guaranteed

📱 Mobile & Desktop Experience

Mobile Devices

  • Fully responsive design

  • Touch-friendly buttons

  • Optimized for smartphones and tablets

  • Works offline after initial load

Desktop/Laptop

  • Keyboard shortcuts (Enter to convert)

  • Large, readable results

  • Easy file downloads

  • Copy-paste functionality

💡 Advanced Tips

For Network Professionals

  • Use 6to4 converted addresses for IPv6 tunneling

  • Reference hexadecimal values for configuration files

  • Binary representation helps understand subnet masking

For Students & Learners

  • Study IPv4 to IPv6 conversion logic

  • Understand 6to4 addressing scheme

  • Learn hexadecimal and binary representations

For Developers

  • All code runs client-side (JavaScript)

  • No API keys needed

  • Can be integrated into network tools

  • Open for customization

🔄 Quick Actions

To Clear Everything

  • Click “Clear” button

  • Or refresh the page

  • Starts fresh conversion session

To Save Multiple Conversions

  • Download results after each conversion

  • Files are automatically named with IP address

  • Organize by date/timestamp in downloaded files

❓ Common Questions

Q: What is 6to4 addressing?

A: 6to4 is an IPv6 transition mechanism that automatically tunnels IPv6 traffic over IPv4 networks using the 2002::/16 prefix.

Q: Are my IP addresses stored?

A: No! All processing happens locally in your browser. No data is transmitted or stored on any server.

Q: Can I use this tool offline?

A: Yes! After loading the page once, you can use it offline for unlimited conversions.

Q: What formats does the tool support?

A: Input: IPv4 only (xxx.xxx.xxx.xxx)
Output: IPv6, Hexadecimal, Binary, and downloadable TXT, HTML, CSV, PDF files.

Q: Is there a limit to usage?

A: No limits! Convert as many IP addresses as you need, completely free.

🎯 Best Practices

  1. Verify IP Format: Ensure correct xxx.xxx.xxx.xxx format before conversion

  2. Use Auto-detect: Save time with the IP detection feature

  3. Download Results: Keep records by downloading in preferred format

  4. Check Binary: Useful for network calculations and subnet planning

  5. Share Responsibly: Downloaded files contain IP information – share securely

⚡ Performance Tips

  • Fast Typing: Tool updates automatically after 0.5 seconds

  • Quick Downloads: Files generate instantly

  • Clipboard Ready: One-click copy for all results

  • Error Prevention: Invalid formats show immediate alerts

🔧 Technical Details

Conversion Logic

  1. IPv4 split into 4 octets (8-bit segments)

  2. Each octet converted to hexadecimal

  3. 6to4 prefix (2002::/16) added

  4. Hexadecimal joined with IPv4 hex values

  5. Full expansion shows all 8 IPv6 segments

Supported Browsers

  • Chrome 60+

  • Firefox 55+

  • Safari 11+

  • Edge 79+

  • Opera 50+

File Specifications

  • TXT: UTF-8 encoded, CRLF line endings

  • HTML: Valid HTML5 with embedded CSS

  • CSV: RFC 4180 compliant

  • PDF: A4 format, vector graphics

📞 Support & Feedback

This tool is maintained by freetoolscraft.com. For suggestions or issues:

  1. Bookmark this page for future use

  2. Share with colleagues needing IP conversion

  3. Check freetoolscraft.com for more free tools

⚠️ Important Notes

  • Educational Use: Great for learning IPv6 concepts

  • Professional Use: Verified accurate conversions

  • Security: No external connections after page load

  • Accuracy: Double-check critical conversions for production use

🚀 Getting Started Now

  1. Bookmark this page for quick access

  2. Try with your own IP (click “Detect My IP”)

  3. Download sample results

  4. Share with your network team


Last Updated: [Current Date]
Tool Version: 2.0
Provider: freetoolscraft.com
License: Free for personal and commercial use

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