Most unauthorized "license activators" contain Trojans or ransomware.
For non-commercial or casual modeling, SketchUp offers a free, web-based version that runs directly inside your internet browser. While it lacks local plugin support and some advanced solid modeling tools, it allows you to view, edit, and create core 3D geometry without a paid license. 3. Explore Open-Source or Flat-Fee Alternatives
This error almost always points to a typo. Because both the serial number and the authorization code are long strings of alphanumeric characters, it is easy to mix up similar characters (such as the number 0 and the letter O , or 1 and l ).
SketchUp Pro 2020 was designed for older versions of Windows (Windows 10) and macOS (Catalina/Mojave). Modern operating systems like Windows 11 or newer macOS versions (such as Sonoma or Sequoia) may cause stability issues, crashes, or prevent the installer from running entirely. SketchUp Pro 2020 was designed for older versions
Unlike modern software-as-a-service (SaaS) subscription models that require a constant internet connection and yearly renewals to function, the Classic License allowed you to run SketchUp Pro 2020 on your local machine without ongoing payments. To verify and unlock the software, you had to input two primary credentials:
Some users have reported that when they use the License Manager, it only returns a 2021 serial number starting with "W" instead of their 2020 license. This can happen if your license was upgraded at some point. In this case, your 2020 credentials may no longer be valid. You will have two options: install SketchUp Pro 2021 instead, or contact SketchUp Support to see if your original 2020 license can be reinstated.
If you receive an error indicating that your license has already been activated on the maximum number of computers, you need to remove the license from one of the existing devices before activating a new one. You can do this by opening SketchUp on the old computer, going to the License menu, and selecting "Remove License." If the old computer is no longer accessible (e.g., a dead hard drive), you may need to contact SketchUp Support to have them manually deactivate it for you. please let me know:
Until November 4, 2020, SketchUp offered Classic Licenses, also known as Perpetual Licenses. With this model, users made a one-time purchase to own a specific version of the software forever (like SketchUp Pro 2020). Once purchased, the license could be used indefinitely on that version, without any recurring fees.
Click SketchUp in the top menu bar, then select Welcome to SketchUp > Licensing .
If you don't already own a license, here are the best, safest, and most affordable ways to legally access SketchUp functionality. You can securely download the genuine
Trimble maintains an archive of older desktop installers for legacy users. You can securely download the genuine, unaltered installation files from the official .
If you cannot find your original purchase email, do not worry. SketchUp provides a free, official tool to help you retrieve your Classic License information: the SketchUp License Manager.
If you are ready to transition your workflow or need assistance verifying your historical purchase data, please let me know: