Diff Checker
Compare texts and find differences - by lines, words or characters
Original
Modified
Result
What is a Diff Checker?
A Diff Checker compares two texts and shows the differences between them. Added sections are marked in green, removed ones in red. This is particularly useful when comparing code versions, configuration files, documents, or any texts. The comparison can be done at different levels: line-by-line for large text blocks, word-by-word for wording changes, or character-by-character for minimal differences like typos. This flexibility makes it suitable for a wide range of comparison scenarios.
How do I use the Diff Checker?
Paste the original text on the left and the modified text on the right. Select the comparison mode (lines, words, or characters) and click "Compare". The differences are highlighted in color: green for additions, red for deletions. The statistics show you at a glance how many changes there are. The result can be copied with the copy button.
Why compare texts online?
Our Diff Checker runs entirely in your browser - no upload, no server processing. This is ideal for sensitive code or confidential documents. You do not need Git or any diff tool installed. Simply paste text, compare, and see the differences immediately. Perfect for code reviews, document comparisons, or finding typos in your content.
More Tools
Also try our JSON Formatter before diffing, the SQL Formatter for query comparison, or the HTML Formatter for markup.