Compare two text files and see the differences.
Compare two multi-line texts (left = original, right = modified). Shows removed lines (red), added lines (green), and in inline mode highlights the exact changed segments.
Each line is treated atomically first (line mode). Inline mode then performs a token diff within changed lines (simple longest common subsequence over characters).
Two synchronized columns: Left shows original with deletions; Right shows modified with additions. Inline mode further annotates changed portions within lines.