What is the difference between line diff and character diff?

Line diff compares whole lines (like Git default). Character diff (word-level) compares character sequences within lines and shows inline changes. Most code review tools show both levels.

Diff Checker

Compare two text files or code blocks line-by-line.

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Original Text

Modified Text

+3 added-2 removed2 unchanged

=Hello World
-This is line 2
+This line was changed
=This line exists
-Goodbye
+New line added
+Goodbye

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