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Diff Checker — User Guide

The Diff Checker compares two text blocks, code files, or JSON structures and highlights additions, deletions, and modifications live in your browser.

View Modes & Features

  1. Unified Inline Diff: View modifications combined in a single scrollable pane with additions (+) in green and deletions (-) in red.
  2. Side-by-Side Split View: Parallel two-column comparison highlighting modified lines on the left (Original) vs. right (Modified).
  3. Structural JSON Comparison: Parses both inputs as JSON objects and evaluates key-level additions, deletions, and value mutations.
  4. Diff Stats: Live count of added lines (+), removed lines (-), and unchanged lines.
  5. Whitespace & Case Options: Toggle options to ignore trailing/leading whitespace or evaluate case-insensitively.