SketchUp 2021 uses a specific API. A plugin cracked for SketchUp 2017 may install but will crash SketchUp 2021 repeatedly, corrupting your project files.
: Instantly calculates the volume and surface area of "true solids" regardless of face orientation. ColorBySlope & ColorByAltitude fredo tools sketchup 2021 free download
The release of SketchUp 2021 brought refined modeling capabilities, yet for many professionals, the core software is merely a canvas. The true mastery of the medium often comes from extensions—most notably the Fredo6 collection. FredoTools, a compilation of diverse, standalone utilities, represents a bridge between standard CAD modeling and the nuanced needs of digital artisans. SketchUp 2021 uses a specific API
The developer, Fredo6, charges a modest fee (around €10-€20 per tool or a bundle) for the Pro features. Many users search for "free download" hoping to get the Pro features. They do not exist as a legal free download. ColorBySlope & ColorByAltitude The release of SketchUp 2021
To successfully get this extension working in SketchUp 2021, you need to grab two specific files from the secure source. Do not rely on unverified third-party mirror websites or sketchy external drive links. Step 1: Install the Prerequisite (LibFredo6) FredoTools | SketchUcation
: Provides advanced scaling, twisting, and bending.
For SketchUp 2021, there is a community-maintained (FTC) that bundles all the free versions and correct LibFredo6 into one installer. As of 2025, this collection is still available in the SketchUation Plugin Store under "Collections." This is the safest "free download" because it comes directly from the original plugin store, not a piracy site.