A: Theoretically, yes, on GitHub. Practically, no. It was written for SketchUp 7 and Ruby 1.8. It will not run on any modern operating system.
| Libfredo6 Version | Best for SketchUp Version | Compatible With (Examples) | Notes | | :--- | :--- | :--- | :--- | | | SketchUp 2015 – 2016 | Curviloft 1.7, JointPushPull 2.x | Last version without the modern UI (Report Browser). | | v8.5a | SketchUp 2017 – 2019 | FredoTools 3.3a, RoundCorner 2.0 | The "Workhorse" – Most stable for pre-2020 workflows. | | v10.7 | SketchUp 2020 – 2021 | FredoScale 3.0, TopoShaper 2.0 | Introduces dark mode compatibility. | | v12.0c | SketchUp 2022 – 2023 | All Fredo6 plugins up to 2024 | Fixed a major memory leak from v11. | | v13.0+ | SketchUp 2024+ | Only the latest plugin versions | Warning: Do not use v13+ with plugins last updated in 2020. | Libfredo6 Old Version
Libfredo6 (also known as Fredo6 Library) is a shared code library developed by the legendary French developer Fredo6. It provides the common user interface (UI), language translation, error handling, and geometry management functions required by his suite of plugins. A: Theoretically, yes, on GitHub
But what happens when a new version of Libfredo6 clashes with an older plugin, your specific version of SketchUp, or your carefully curated workflow? You search for the . It will not run on any modern operating system
By using the official GitHub archives, understanding the version mapping chart, and following the clean uninstallation process, you can safely run a legacy environment.
A: Inside the downloaded RBZ file, there is a CHANGELOG.txt file. Open it with Notepad to see exactly what changed between v8.0 and v8.5. This article was last updated in 2025. The information regarding SketchUp 2025 and Libfredo6 v14+ is speculative but based on typical development cycles. Always backup your Plugins folder before any downgrade.