About Text Difference 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