Compare two texts and instantly see what changed. Additions highlighted in green, deletions in red. Runs entirely in your browser — no data is sent anywhere.
Original Text (A)
Modified Text (B)
📄
Paste text in both panels and click Compare to see differences.
Frequently Asked Questions
What is a text diff checker?
▼
A text diff checker is a tool that compares two versions of text and highlights the differences between them. Additions (text only in the second version) are shown in green, and deletions (text only in the first version) are shown in red. It is useful for comparing code changes, document revisions, or any two pieces of text.
Is this diff checker free and private?
▼
Yes, this diff checker is completely free and runs 100% in your browser. No text is ever sent to any server. Your data stays private on your device.
What does the "ignore whitespace" option do?
▼
When "ignore whitespace" is enabled, differences caused only by spaces, tabs, or other whitespace characters are not counted as changes. This is useful when comparing code that has been reformatted or text where indentation has changed but the content is the same.