Searching for "cracked" software like SketchUp plugins often leads to sites that host malware, viruses, and backdoors

(though now often paid) sometimes have free alternative workflows for rounding edges. How to Install Free Plugins Legally For most free plugins (typically files), the installation process is straightforward: Open SketchUp Window > Extension Manager Install Extension Select your downloaded file and click Alternatively, for manual installs, files are placed in the %appdata%\SketchUp\SketchUp [Version]\SketchUp\Plugins folder on Windows. Legitimate Free Alternatives

If you are looking for SketchUp Pro features without the cost: