OneDrive File Issues

How to Merge OneDrive Folders During a Web Upload

Huma Ashraf Ch Oct 1, 2026 868 views

Question details

The user wants to upload a folder structure to the OneDrive web interface and merge it with an existing folder of the same name without creating duplicates.

How to Merge OneDrive Folders During a Web Upload

Product: Microsoft OneDrive
Device & OS: not provided
Scenario: Uploading a structured folder (e.g., year and month organization) via the OneDrive web interface to a directory where a folder with the identical name already exists.
Observed behavior: When prompted, selecting 'Keep Both' creates a duplicate folder rather than merging the contents of the newly uploaded folder into the existing one.

Before you start

Before attempting to merge or overwrite folders, make sure you create a complete local backup of your existing data to prevent accidental loss of important files.

Solution 1Recommended

Download and Merge Folders Locally Using File Explorer

Since the OneDrive web interface does not support native folder merging, the most reliable method is to download the existing folder, merge it locally on your computer, and re-upload it.

The OneDrive web interface is designed to prevent accidental data overwriting. As a result, selecting 'Keep Both' simply creates a secondary folder with an appended number (e.g., Folder(1)). To truly merge the contents, you must rely on the operating system's native file explorer capability.

Download the Existing Folder

Log in to the OneDrive web interface, locate the existing folder you want to update, select it, and click the 'Download' button at the top menu. The folder will be downloaded as a ZIP file.

Extract the Downloaded Folder

Locate the downloaded ZIP file on your local computer, right-click it, and select 'Extract All' to unpack the existing folder structure.

Merge the Folders Locally

Copy or move the new folder (the one you initially intended to upload) into the same directory as the extracted existing folder. When Windows or macOS prompts you that a folder with the same name already exists, choose the option to merge the folders.

Upload the Merged Folder

Return to the OneDrive web interface. Delete the original folder on OneDrive (ensure your backup is safe), and upload the newly merged local folder in its place.

Download and Merge Folders Locally Using File Explorer

Local Sync Alternative: If you use the desktop version of OneDrive, moving the new folder directly into your synchronized local OneDrive directory via File Explorer will automatically trigger a standard local folder merge without needing to download or upload manually through a web browser.

Solution 2

Use a Third-Party File Manager to Merge Folders

For users with large folder structures who want to avoid manual downloading and re-uploading, third-party cloud management tools can perform direct merges.

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Frequently Asked Questions

Why does OneDrive offer 'Keep Both' instead of 'Merge' on the web interface?

The web interface is designed with a basic file collision policy to prevent accidental data overwriting. When it detects a naming conflict, 'Keep Both' simply renames the new folder to ensure no existing files are deleted, lacking the advanced directory comparison required for a true merge.

Does the OneDrive desktop application support folder merging?

Yes, if you use the OneDrive desktop app, you manage files through Windows File Explorer or Mac Finder. Dragging a folder into your local OneDrive directory will utilize the operating system's native folder merge capabilities.

Will I lose files if I delete the old OneDrive folder before uploading the merged one?

If you have securely downloaded the entire old folder and successfully merged it with your new files locally, you will not lose data. However, you should always verify the local backup contains all necessary files before deleting anything from the cloud.

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