WinMerge is a free, open‑source differencing and merging tool for Windows. It helps you visually compare files and folders, identify changes, and merge them efficiently.

📂 Compare files and folders side‑by‑side

🖊️ Visual differencing with syntax highlighting and line numbers

⚡ Supports 3‑way file and folder comparison

🔍 Highlights differences inside lines for precision

🖼️ Image comparison with overlay and difference blocks

🛠️ Create patch files and resolve version control conflicts

🌐 Unicode support, tabbed interface, and flexible filters

🤝 Community‑driven, open‑source project

Perfect for: Developers, editors, and anyone needing a clear view of changes between versions of files or directories.