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Professional Text Comparison with Multiple Algorithms
A powerful tool for comparing text documents and finding differences between them. Supports character-by-character, word-by-word, line-by-line, and sentence-by-sentence comparison modes.
The Text Difference Analyzer is a professional-grade tool for comparing two text documents and identifying differences between them. Whether you're reviewing code changes, comparing document versions, or finding subtle text differences, this tool provides comprehensive comparison capabilities.
Tip: Click "Load Sample" in the Analysis tab to see a demonstration of how the tool works with example text.
The tool offers four different comparison algorithms, each suited for different types of text comparison tasks.
Compares text at the individual character level. Best for finding typos, small edits, and precise character-level changes.
Compares text at the word level. Ideal for comparing articles, documents, and content where word changes matter more than character changes.
Compares text line by line. Perfect for code comparison, config files, and structured text where line boundaries are important.
Compares text at the sentence level. Useful for comparing essays, reports, and longer documents where sentence-level changes are significant.
Note: The character mode counts actual characters in statistics, while other modes count parts (words, lines, sentences).
Three different view modes allow you to see the differences in the way that best suits your needs.
Shows all changes in a single flowing view. Additions are highlighted in green, deletions in red with strikethrough. This view is best for getting a quick overview of all changes together.
Shows added and removed parts separately. This makes it easy to see exactly what was removed (red) versus what was added (green) without them being mixed together.
Shows only the changed parts, hiding unchanged text. This is useful when you only want to see what's different without the surrounding context.
Advanced filtering options help you customize how differences are detected and displayed.
When enabled, text comparisons are case-insensitive. "Hello" and "hello" will be considered the same. Useful when comparing text where capitalization might vary.
When enabled, whitespace differences are ignored. Multiple spaces, tabs, and line breaks are normalized. Great for comparing code or formatted text where spacing might differ.
Pro Tip: Use the search box in the Differences panel to filter and highlight specific text within the comparison results.
The tool provides comprehensive statistics about the differences found between your texts, helping you understand the scope of changes.
Number of new characters/words/lines/sentences added to the text.
Number of characters/words/lines/sentences removed from the text.
Combined count of additions and deletions, showing the overall magnitude of differences.
Percentage indicating how similar the two texts are, from 0% to 100%.
Multiple export options allow you to save and share your comparison results.
Downloads the complete comparison data including original text, modified text, statistics, and timestamp as a JSON file.
Creates a standalone HTML report with visual highlighting of differences that can be shared and viewed in any browser.
Copies the difference text to your clipboard for easy pasting into other documents or communication tools.
Note: Export options are disabled until you have entered text in both comparison fields and generated a comparison.
Speed up your workflow with these keyboard shortcuts available in the tool.
| Shortcut | Action |
|---|---|
| Ctrl + K | Focus search input |
| Ctrl + E | Export comparison as JSON |
| Ctrl + R | Reset all text and start over |
| F11 | Toggle fullscreen mode |
macOS: Use ⌘ instead of Ctrl for keyboard shortcuts.
The Text Difference Analyzer is useful in many scenarios where you need to compare text content.
Compare code snippets to review changes, find bugs, or understand what modifications were made to a file. Use line-by-line mode for best results.
Compare different versions of documents, articles, or reports to track changes over time and identify edits.
Check if translations match the original text or find differences between translation versions. Use sentence mode for best results.
Compare configuration files to see what settings changed between environments or versions.
Writers and editors can use this tool to see exactly what changes were made between drafts of their content.
Validate that data exports, imports, or transformations produced the expected results by comparing expected vs. actual output.