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See the differences between two blocks of text side-by-side. A visual diff checker for code, documents, and content.
Enter text in the boxes above and click the "Compare Texts" button to see a detailed difference report here.
Our visual diff engine highlights additions in green, deletions in red, and unchanged text in gray. Whether you're reviewing a single paragraph or a 10,000-line file, you'll spot every modification instantly without scrolling back and forth.
Choose your comparison depth: Line mode for structured data, Word mode for natural prose, or Character mode for pixel-perfect accuracy. Each mode reveals different insights—from major structural changes to subtle punctuation tweaks.
Zero server uploads. Zero cloud storage. Our entire comparison engine runs in your browser. Your confidential documents, personal notes, and private content never touch the internet.
Syntax highlighting for 50+ languages including JavaScript, Python, SQL, and YAML. Compare code snippets, config files, or any structured text with proper formatting and bracket matching.
Export publication-ready comparison reports with color-coded diffs, change statistics, and timestamps. Perfect for documentation, sharing with colleagues, or keeping records of changes.
Normalize whitespace, ignore case sensitivity, or sync-scroll through long documents. Tailor the comparison to your specific needs—whether you're proofreading an essay or comparing two versions of a file.
Students and writers: paste your original draft and your edited version to see exactly what you or someone else changed. Great for reviewing teacher feedback or tracking your own revisions.
Need to see what's different between an old and new version of a letter, email, or any text? Paste both versions and instantly see every word that was added, removed, or modified.
Copying text from one place to another can introduce errors. Compare your original with the pasted version to make sure nothing got lost, duplicated, or accidentally changed.
Did a colleague, friend, or family member edit your writing? Compare the before and after to see their exact changes and decide which ones to keep.
Compare the original text with a translated version side-by-side. Make sure nothing important was left out or changed incorrectly during translation.
Compare product details, job listings, or any two similar texts to quickly spot what's different. Useful for shopping comparisons or checking updated information.
Our tool gives you powerful options to customize how text is compared. Here's how each setting helps you get the perfect result.
Compares text line by line, treating each line as an atomic unit. Best for log files, CSV data, numbered lists, or any content where line breaks are meaningful. Shows clearly which lines were added, removed, or modified.
Breaks down each line into individual words and compares them. Ideal for reviewing sentence rewrites, editorial changes, or translated content where the structure stays similar but phrasing evolves.
The most granular mode compares every single character including spaces and punctuation. Perfect for catching subtle typos, accidental double spaces, or single character errors in text and data.
Treats "Apple" and "apple" as identical. Essential when comparing outputs where capitalization doesn't matter, such as user generated content or mixed case data.
Normalizes indentation, tabs vs. spaces, and trailing whitespace. Compare text formatted differently without being distracted by meaningless spacing changes.
Both text panels scroll together, keeping corresponding lines aligned. Navigate through long documents without losing your place essential for reviewing lengthy texts or multi page files.
Paste your text into the left and right panels, or drag and drop your files directly. Click "Compare" and our engine will instantly highlight all differences. No signup required, no file limits, completely free to use.
Line diff treats each line as a single unit useful for structured data and lists. Word diff compares individual words within lines better for prose and sentences. Character diff is the most precise, showing exact character level changes.
No, our comparison engine runs entirely in your browser using client-side JavaScript. Your text never leaves your device, making this tool safe for confidential documents and sensitive personal data.
Yes, select your language from the dropdown (JavaScript, Python, HTML, SQL, and 50+ others). The diff view will display proper syntax colors, making code changes easier to review and understand.
Click "Export Report" to generate an HTML file with your full comparison, color coded changes, and statistics. You can open it in any browser, print it, or share it with colleagues.
There's no limit. Our engine handles hundreds of thousands of characters efficiently. Performance depends on your browser and device memory, modern browsers, can compare very large files without issues.
Yes, the interface is fully responsive and works on smartphones and tablets. You can paste text, adjust options, and view diffs on any device with a modern web browser.