Reducing Revit Models File Size

February 2025

❝ I found most Revit models end up in 400 MB or more. ❞

😞 Unfortunately, Purge Unused Revit button doesn´t clean within project families.

So, I made a small Revit tool that cleans within the selected families and reloads a lighter version of them in the model.

I’m probably (very) biased, but I used it and made a video reducing the file size of one of my models by 40 percent.

📌 If you want to watch the video:

PS: This small tool is for nonicatab pro.

💻 Coding tip: used the performanceadviser and its rules to find out what needs to be purged.

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Jaime Alonso Candau

Director at Nonica.io | Contributions to RevApiDocs.com, pyRevit or Dynamo.