Text Diff
Developer · v1.0.0 · runs fully in the browser, data never leaves your device
+2−1
| 1 | 1 | First line | |
| 2 | − | Second line | |
| 2 | + | Second line, edited | |
| 3 | 3 | Third line | |
| 4 | + | New line |
Based on the longest common subsequence (LCS). If either side exceeds 2000 lines, it falls back to line-by-line comparison to keep the page responsive.