Text Diff Tool

Compare two texts, find differences, highlight changes, and analyze variations. Perfect for code review, document comparison, and text analysis.

Original Text
Hello World
Modified Text
Hello SmartWorld

Text Difference Checker

Compare two texts side by side and see exactly what has been added, removed, or changed

Character count: 0
Character count: 0
0
Added Items
0
Removed Items
0
Changed Items
100%
Similarity
Text 1 Summary
Original text summary will appear here...
Text 2 Summary
Modified text summary will appear here...

Why Use Our Text Diff Tool?

Advanced text comparison with multiple viewing options and detailed analysis

Multiple Comparison Methods

Compare character by character, word by word, or line by line with different algorithms

Smart Highlighting

Color-coded highlighting for added, removed, and changed content

Detailed Statistics

Get comprehensive statistics about differences and similarity percentage

Export Options

Copy, download, or merge comparison results in multiple formats

Text Comparison Examples

📝 Code Comparison

+ function newFeature() {
+ return "Added";
+ }
- function oldFeature() {
- return "Removed";
- }

Perfect for comparing code versions and tracking changes

📄 Document Revision

Original: The cat dog runs fast.
Modified: The quick brown dog runs very fast.

Track changes between document versions with word-level precision

🎯 Common Use Cases

  • Code review and version control
  • Document revision tracking
  • Plagiarism detection
  • Content synchronization
  • Configuration file comparison
  • Translation verification
`); showNotification('Merged text opened in new window!', 'success'); } // Load example function loadExample() { const example1 = `The quick brown fox jumps over the lazy dog. This is the original version of the document. Compare this text with the modified version. This tool helps identify differences between texts.`; const example2 = `The quick brown fox jumps over the lazy dog. This is the modified version of the document. Compare this text with the original version. This tool helps identify changes between two texts. Added line: This line is new in the modified version.`; document.getElementById('text1').value = example1; document.getElementById('text2').value = example2; updateCharCounts(); updateTextSummaries(); compareTexts(); showNotification('Example loaded and compared!', 'success'); } // Escape HTML for safe display function escapeHtml(text) { const div = document.createElement('div'); div.textContent = text; return div.innerHTML; } // Show notification function showNotification(message, type = 'success') { // Remove existing notification const existingNotification = document.querySelector('.notification'); if (existingNotification) existingNotification.remove(); // Create notification const notification = document.createElement('div'); notification.className = `notification ${type}`; notification.innerHTML = ` ${message} `; document.body.appendChild(notification); // Auto remove after 3 seconds setTimeout(() => { if (notification.parentElement) { notification.style.animation = 'slideOut 0.3s ease'; setTimeout(() => notification.remove(), 300); } }, 3000); } // Setup mobile menu function setupMobileMenu() { const menuToggle = document.getElementById('menuToggle'); const navLinks = document.getElementById('navLinks'); if (menuToggle && navLinks) { menuToggle.addEventListener('click', function() { navLinks.classList.toggle('active'); // Animate hamburger to X const spans = menuToggle.querySelectorAll('span'); if (navLinks.classList.contains('active')) { spans[0].style.transform = 'rotate(45deg) translate(5px, 5px)'; spans[1].style.opacity = '0'; spans[2].style.transform = 'rotate(-45deg) translate(7px, -6px)'; } else { spans[0].style.transform = 'none'; spans[1].style.opacity = '1'; spans[2].style.transform = 'none'; } }); // Close menu when clicking outside document.addEventListener('click', function(event) { if (!menuToggle.contains(event.target) && !navLinks.contains(event.target)) { navLinks.classList.remove('active'); const spans = menuToggle.querySelectorAll('span'); spans[0].style.transform = 'none'; spans[1].style.opacity = '1'; spans[2].style.transform = 'none'; } }); // Close menu when clicking a link navLinks.querySelectorAll('a').forEach(link => { link.addEventListener('click', () => { navLinks.classList.remove('active'); const spans = menuToggle.querySelectorAll('span'); spans[0].style.transform = 'none'; spans[1].style.opacity = '1'; spans[2].style.transform = 'none'; }); }); } }