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Text Diff Checker

Compare two texts and find differences instantly. Highlights additions, deletions, and changes. Perfect for code review, document comparison, content updates, and version control.

🔍 Instant Comparison 🎨 Color-Coded Diffs 📊 Change Statistics

📝 Original Text

📝 Modified Text

Text Diff Checker Use Cases

💻 Compare Code Changes

Reviewing code before commit? Paste old and new versions to see exactly what changed. Highlights additions/deletions line-by-line. Perfect for pull request reviews, debugging, or understanding teammate's changes.

📄 Check Document Revisions

Compare contract versions, terms of service updates, or policy changes. See what clauses were added/removed. Essential for legal review, content audits, or understanding what changed between document versions.

🔍 Find Text Differences Online

Two similar texts but can't spot the difference? Our tool highlights every character change. Use for proofreading, detecting plagiarism, comparing translations, or finding subtle typos in large documents.

📝 Markdown Diff Checker

Comparing README files, documentation, or blog posts in Markdown? See which headings, links, or code blocks changed. Perfect for GitHub README updates or technical writing revisions.

⚙️ Compare Configuration Files

Changed .env, nginx.conf, or package.json? Compare before/after to verify you didn't break anything. Spot which environment variables, dependencies, or settings were modified.

✏️ Check Translation Changes

Translator updated your content? Compare original and revised translations to see what phrases were changed. Useful for localization QA, translation review, or understanding editor's corrections.

How to Use Text Diff Checker

Step-by-Step Guide

  1. Paste your original text into the left box
  2. Paste the modified text into the right box
  3. Click "Compare Texts" button
  4. View colored diffs: Red = Removed, Green = Added
  5. Check statistics to see total changes made

Color Legend

🔴 Red (Removed): Text that exists in original but deleted in modified version
🟢 Green (Added): New text added in modified version
⚪ Gray (Unchanged): Text that remains the same in both versions

Best Practices

  • ✅ Paste formatted code with proper indentation for accurate comparison
  • ✅ Use line-by-line format for better diff visualization
  • ✅ Compare same file types (e.g., both JSON, both Markdown)
  • ✅ Check statistics to quantify how much changed
  • ✅ Use "Swap" button to quickly reverse comparison direction
Done!