Text Compare Tool
Compare two texts side-by-side with word-level highlighting, file upload, and instant diff.
| # | Original | # | Modified |
|---|---|---|---|
| 1 | function greet(name) { | 1 | function greet(name, greeting = "Hello") { |
| 2 | console.log("Hello, " + name + "!"); | 2 | console.log(greeting + ", " + name + "!"); |
| 3 | return true; | 3 | return { success: true, name }; |
| 4 | } | 4 | } |
| 5 | 5 | ||
| 6 | const users = ["Alice", "Bob", "Charlie"]; | 6 | const users = ["Alice", "Bob", "Diana"]; |
| 7 | users.forEach(user => { | 7 | for (const user of users) { |
| 8 | greet(user); | 8 | greet(user, "Hi"); |
| 9 | }); | 9 | } |
| 10 | 10 | ||
| 11 | // Updated greeting logic | ||
| 11 | // End of file | 12 | // End of file |
How to Use Text Compare Tool
- 1
Paste original text in the left panel (or drag and drop a file).
- 2
Paste modified text in the right panel (or upload a file).
- 3
Choose diff mode: Line, Word, or Character.
- 4
Toggle ignore options if needed (case, whitespace, punctuation, line order).
- 5
View color-coded differences in the split or unified view below.
- 6
Navigate between changes with the arrow buttons or Alt+Up/Down.
- 7
Copy the diff or download as PNG.
About Text Compare Tool
The most powerful free text compare tool online. Compare two texts side-by-side with line, word, or character-level precision, complete with color-coded diff highlighting, similarity percentage, and one-click PNG export. All processing happens in your browser — your text never leaves your device.
Key Features
- Three Diff Modes: Line, Word, or Character-level comparison with inline highlighting.
- File Upload: Drag-and-drop .txt, .md, .json, .csv, .js, .py, and many more file types.
- Ignore Options: Ignore case, whitespace, punctuation, or line order for flexible comparisons.
- Navigate Changes: Jump between differences with arrow buttons or Alt+Up/Down shortcuts.
- Export as PNG: Download a screenshot of the diff for sharing or documentation.
Who Is This For?
Developers reviewing code changes, writers comparing document revisions, QA engineers checking test outputs, content editors tracking changes, and anyone who needs to quickly find differences between two pieces of text.
Privacy & Security
Runs 100% in your browser — no signup, no uploads, no data stored. Your text never leaves your device.