What is a Text Diff Checker?
A text diff checker compares two pieces of text and highlights the differences between them. It shows which lines were added, removed, or remained unchanged. This is similar to the "diff" command used in programming and version control systems like Git.
Common Use Cases
Text diff tools are useful for comparing code changes, reviewing document revisions, checking for plagiarism, verifying configuration file changes, and comparing any two versions of text. Writers use them to track edits, while developers use them to review code changes before committing.
How It Works
This tool uses the Longest Common Subsequence (LCS) algorithm to find the optimal alignment between two texts. Lines present only in the original are marked as removed (red), lines present only in the modified version are marked as added (green), and matching lines are shown as unchanged.