Text Diff Checker

Diff tools are everywhere — Git uses them, every code review tool runs them, and documentation comparison depends on them. But sometimes you just need a quick diff of two paragraphs, two configuration files, or two versions of a piece of copy without going through Git. That's what this tool is for.

The diff algorithm is the classic Myers diff (via the `diff` library), the same one Git uses under the hood. You can pick the granularity — line for code/config diffs, word for prose, character for finding the exact spot two strings diverge. View the result inline (additions and deletions interleaved) or side by side (original on the left, changed on the right). An optional 'ignore whitespace' mode is useful for comparing files where only indentation has changed. Diff computation is debounced 120 ms so typing in large inputs stays responsive. All processing is local.