Diff Checker

Compare two blocks of text with line-level diffing. Highlights added lines in green and removed lines in red. Side-by-side view shows both versions simultaneously. Unified view shows a single stream with + and - markers. Diff statistics show exact counts.

Comparison Modes

Side-by-Side: Original text on left, changed text on right. Added lines highlighted in green, removed in red, unchanged in gray. Easy visual comparison.

Unified View: Single stream showing both versions. Added lines marked with + (green), removed lines marked with - (red). Similar to git diff output.

Diff Statistics

Total lines in original and changed text. Lines added count. Lines removed count. Lines unchanged count. Percentage of text changed.

Common Use Cases

Code review: Compare code versions before merging. Configuration files: Find differences between config versions. Document versions: Track changes in text documents. Log analysis: Compare log files to find anomalies. API responses: Compare expected vs actual API output.

Performance

Handles large text files efficiently. Line-based diff algorithm optimized for speed. Real-time diff updates as you type.