Text Diff Checker

The Text Diff Checker is a free online tool that compares two blocks of text and highlights the differences. Whether you're reviewing edited content, tracking code changes, or analyzing data sets, this online diff checker makes it easy to spot every character, word, or line that's been modified, added, or removed.

🎯 Key Use Cases

• Writers and Editors: Detect line-by-line text changes in articles, scripts, and reports
• Developers: Run code diff comparisons between script versions
• QA Testers: Validate output files with minimal visual inspection
• Students: Check document revisions and assignment edits easily

🧰 Tool Features

• Compare two texts in real time
• Choose between Line-by-Line or Word-by-Word modes
• Enable options to ignore case, ignore whitespace, or show line numbers
• Completely browser-based—no downloads or sign-up required

🧬 What Can You Compare?

• Plain text content for editing checks
• HTML, CSS, JavaScript, Python, JSON files
• Code versions between Git commits
• File difference for system logs, configs, or test outputs

📊 Comparison Modes Explained

Choose the best mode depending on your task:

• Line by Line: Ideal for prose, paragraphs, and general text review
• Word by Word: Best for detailed code diff or technical writing

🔁 Supported Difference Options

• ✅ Ignore Case
• ✅ Ignore Whitespace
• ✅ Show Line Numbers

🌐 Related Tools

• Remove Line Breaks
• Reverse Text Generator
• Text Joiner
• Text to Unicode

How does the Text Diff Checker work?

Paste two blocks of text, choose your comparison mode, and hit "Compare." The tool highlights the differences using color-coded visuals for clarity.

Can I compare code using this diff checker?

Yes! This is also a code difference checker. It supports languages like HTML, JavaScript, JSON, and Python. Great for Git diff-like use cases.

What does "Ignore Whitespace" mean?

This option tells the tool to skip over differences caused by spacing or indentation. Perfect for comparing minified code or cleaned-up text.

Is this tool safe and private?

Yes. The diff checker runs completely on your browser. No data is stored, uploaded, or shared—100% secure and local to your device.

Can I use this tool to compare two files?

While it doesn't support file uploads directly, you can copy the contents from two files into the text areas. It works great for file diff comparison tasks.

What is the difference between "Line by Line" and "Word by Word"?

Line by line shows major structural changes, great for general content. Word by word offers precision—ideal for code compare or proofreading.

Can I share or export the diff results?

Currently, the tool is view-only. However, you can screenshot or copy the diff result into an editor or use browser-based print-to-PDF options.