How does the Diff Checker work?
It compares two blocks of text line-by-line and character-by-character to identify insertions, deletions, and modifications.
Is it secure?
Yes, the comparison is performed entirely in your browser using JavaScript. No data is sent to our servers.
Can I compare code?
Absolutely. It works great for comparing source code, JSON, XML, or any other plain text format.
How do I read the diff?
Red highlighted sections indicate lines that were deleted, while green sections show lines that were added.
Does it ignore whitespace?
The current version compares exact characters, so whitespace differences (tabs vs spaces) will be highlighted.
Is there a line limit?
It performs best with files under a few thousand lines to ensure browser responsiveness.
What does Swap do?
The Swap button switches the content of the left and right panels, which is useful if you pasted the newer version on the left by mistake.
Can I compare code snippets?
Yes, it is excellent for comparing code versions to spot bug fixes or new features.
Does it support real-time comparison?
Yes, the diff view updates automatically as soon as you stop typing or paste new text.
Is the comparison case-sensitive?
Yes, Text and text will be marked as different.