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Test regular expressions across JS, PHP/PCRE, and Python flavors with real-time highlighting and pattern library.
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Try NowVisualize 6+ sorting algorithms with animations, complexity analysis, and code export features.
Try NowGenerate mock API responses with customizable delays, error simulation, and scenario testing.
Try NowVisualize git diffs with side-by-side view, syntax highlighting, and conflict resolution tips.
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