Text Diff Checker

Instantly compare two texts to identify additions, syntax changes, and deletions with precision. Perfect for code review, content editing, and uncovering subtle modifications.

Input Data

Original Text
Changed Text
Mode:
-6+3
Original (Deleted)
function calculateTotal(price, taxRate) { // Calculate base tax const tax = price * taxRate; // Apply discount if price is > 100 let discount = 0; if (price > 100) { discount = 10; } return price + tax - discount; }
Changed (Added)
function calculateTotal(price, taxRate, discountRate = 0) { // Calculate base tax const tax = price * taxRate; // Apply proportional discount let discount = price * discountRate; return price + tax - discount; }

The Essential Text Comparison Tool

Whether you are a developer reviewing code changes, a writer comparing drafts, or simply trying to find a subtle typo between two configurations, a robust diff checker is an invaluable utility.

Our Text Diff Checker leverages powerful diffing algorithms to provide instantaneous, secure, and highly granular comparisons entirely within your browser window. Choose between split and inline viewing modes, and adjust the sensitivity to focus on exactly what you need.

Text Diff Checker FAQs

Is my text data stored or sent to a server?

No. All text comparisons are performed entirely within your browser locally. Your data is never transmitted or stored.

What is the difference between line, word, and character modes?

Line mode compares full lines of text. Word mode compares individual words, keeping the lines intact but highlighting exact word changes. Character mode provides the highest granularity, showing exactly which letters were modified.

Can I ignore whitespace or case differences?

Yes, you can toggle the 'Ignore Whitespace' and 'Ignore Case' options to fine-tune your comparison and ignore formatting or capitalization changes.

How do I read the Diff output?

Additions are highlighted in green, and deletions are highlighted in red (often with a strikethrough in inline mode). Unchanged text remains standard colored.

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