What is a RBZ file?
A .RBZ file is a SketchUp Plugin archive created by Trimble. It contains Ruby script files (.RB) alongside other software assets like images and web dialogs. SketchUp uses this format to package, distribute, and install extensions easily from the official Extension Warehouse.
How to open RBZ files?
Users typically open and install .RBZ files directly within SketchUp using the built-in Extension Manager. However, if you want to inspect the code without installing the plugin, viewer.online/rbz analyzes .RBZ files to identify their exact format and creator software, shows which programs can open the file, and usually previews it. Alternatively, you can rename the extension to .ZIP and extract it with local software like 7-Zip.
Best practices and troubleshooting
If you experience errors when loading a .RBZ file, ensure that your SketchUp software is fully updated. Some plugins require specific versions of the Ruby environment to function correctly. If you suspect an issue, you can inspect the file contents manually to verify the scripts before you install them into your 3D modeling environment.
Software and tools
The primary software to use these files is SketchUp. Developers write the internal scripts using text editors like Visual Studio Code and package them into the final .RBZ format for public release.
Summary
Because .RBZ files use the known ZIP format, viewer.online/rbz can safely open and display them online, eliminating compatibility problems. This allows you to inspect the plugin contents instantly and securely without needing to install the main software first.