✅ – 7-Zip (open-source) and built-in Windows tools (via PowerShell or “Extract All” selection in File Explorer) cost nothing. The Bad ❌ Inconsistent naming conventions – Some tools create folders like archive1.zip\ , others archive1\ . If you’re not careful, you end up with nested or misnamed directories.

9/10 (docked one point for password limitations and folder-naming quirks).

❌ – Without proper conflict settings (ask/rename/skip), identically named files from different ZIPs will silently overwrite each other.

✅ – Good tools skip corrupt or password-protected files without crashing the whole batch, and report which archives failed.