Text Diff Checker - Compare Two Texts
Compare two texts online for free. See differences highlighted in an easy-to-read format. Perfect for comparing code, documents, and finding changes.
Original Text
Modified Text
💡 How to use:
- Paste your original text in the left panel
- Paste the modified version in the right panel
- Click "Compare Texts" to see the differences
- Green lines show additions, red lines show deletions
- Perfect for comparing code, documents, or any text
How to Use
Follow these simple steps for quick results
- 1Paste or type the first text in the left panel
- 2Paste or type the second text in the right panel
- 3Click "Compare" to see the differences
- 4Additions are highlighted in green
- 5Deletions are highlighted in red
- 6Use the clear button to start over
Key Features
🔍 Side-by-side comparison
✨ Color-coded differences
⚡ Instant comparison
📝 Works with any text
💻 Perfect for code comparison
📊 Line-by-line breakdown
🔒 100% private - no uploads
🆓 Free unlimited comparisons
Frequently Asked Questions
What is a text diff checker?
A text diff checker (or text comparison tool) compares two pieces of text and highlights the differences between them. It shows additions, deletions, and modifications, making it easy to see what has changed between two versions of a document or code.
How does text diff work?
Text diff uses algorithms (like the Myers diff algorithm) to find the longest common subsequence between two texts. It then identifies lines or characters that were added, removed, or modified, and displays them with color coding for easy identification.
What are text diffs used for?
Text diffs are commonly used for: comparing different versions of code or documents, reviewing changes in version control systems (like Git), checking document revisions, identifying modifications in contracts or agreements, and debugging by comparing expected vs actual outputs.
What do the colors mean in diff view?
Typically, green (or plus signs) indicates additions - text that exists in the second version but not the first. Red (or minus signs) indicates deletions - text that was in the first version but removed in the second. Some tools also use yellow/orange for modifications.
Can I compare code with this tool?
Yes! This tool works great for comparing code snippets, scripts, configuration files, or any text-based content. It is particularly useful for reviewing code changes, comparing different implementations, or checking refactored code.
Is the comparison case-sensitive?
Yes, by default the comparison is case-sensitive, meaning "Hello" and "hello" are treated as different. This is important for code comparison where case matters. Some diff tools offer a case-insensitive mode as an option.
How is this different from version control diff?
Version control systems like Git use similar diff algorithms but also track file history, commit messages, and author information. This tool provides a simple, instant comparison without requiring version control setup - perfect for quick comparisons.