by Drive Explorer
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Folders are just metadata in Google Drive
Unlike traditional file systems, Google Drive treats folders as special files with a "folder" type. They don't actually contain files in the conventional sense.
Files reference their parent folders
Each file in Google Drive has a "parent" property that points to its containing folder. This parent-child relationship is stored as metadata on the file itself, not within the folder.
This architecture makes calculating folder sizes computationally expensive, which is why Google Drive doesn't display them by default. Our tool iterates through all files to calculate the total size for you.
We take your privacy and security seriously. Here's how we protect your data.
Google Verified
Drive Explorer undergoes recurring security audits by Google to maintain access to Drive APIs. We meet Google's strict security and privacy standards.
No Server Storage
Your file data never touches our servers. We don't collect, store, or transmit any of your Google Drive files or folder information.
Frontend Processing
All folder size calculations happen entirely in your browser. Your data stays on your device and is never sent to any external server.
To find more ways to check Google Drive folders size, check this article.