By AOMEI / Last Updated April 7, 2021


CBackupper - Easy Online Cloud Backup Solution

  • Combine free space of all clouds, get unlimited cloud backup space for free.
  • Fully use idle space to save crucial data with professional backup methods.
  • Cloud to cloud backup, keep all cloud data safe.
  • Never store user data, safe and reliable.

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Nowadays, with the development of information technology, how to ensure data security is the most important. “Double insurance” and even “multi-insurance” solutions can be seen everywhere. Backup has become an indispensable part of our life.

Public cloud storage such as Google Drive, Dropbox, or OneDrive is an affordable resource for both individuals and small/medium businesses. Backing up your Synology NAS to cloud can minimize the impact of sudden situations like local disk corruption or natural disasters. Here, I will introduce you to 2 effective ways. Let's have a look.

Way 1. Synology Cloud Backup with Cloud Sync

Cloud Sync is a synchronization suite mainly used between the public cloud and NAS. Compared to Hyper Backup, it supports more clouds. Although it only has a synchronization function, you can choose two-way synchronization or one-way synchronization. NAS data synced to the cloud can be accessed directly, and encryption is supported to protect your data on the cloud.

Step 1. Download Cloud Sync from the Package Center and open it from the main menu.

Step 2. In the pop-up window, you can see all the clouds it supports. Choose the cloud service you want. Here, we take OneDrive as an example.

Cloud Sync

Step 3. Enter your OneDrive account to log in. After logging in, you will be prompted to authorize Cloud Sync to access your account.


Step 4. Once the connection has been established, you can begin configuring your backup. Please select local and remote paths. And then you can set a suitable sync direction based on your individual needs.

Select Path


✦ If you choose to sync the root folder of the public cloud, you cannot create additional tasks. If not, you can create multiple sync tasks within a cloud connection.

✦ If necessary, tick Data Encryption, which will encrypt the data sent to the public cloud and decrypt it with the same password when downloading. The selected folder on the NAS will remain unencrypted. Please note that this process is irreversible.

Step 5. Click Next to preview your settings. If you only want to sync specific folders or file types, click Advanced Settings.

Preview Settings

Step 6. Click Apply to finish your backup task.

Step 7. Now you can see that your backup task has been successfully set up.

Up To Date

Way 2. Synology Cloud Backup with CBackupper

CBackupper is a cloud backup service that can work like a cloudy storage management platform, which can combine different clouds into one large backup space. You can add your own clouds to it without limit, and then quickly and easily transfer data between the clouds. Currently, the software is totally free and supports Google Drive, OneDrive, Dropbox, FTP/SFTP.

How to backup Synology NAS to cloud using CBackupper? Here we take OneDrive as an example again.

Step 1. Visit the official website of CBackupper, sign in, or register an account.

Sign Up

Step 2. Enter the account home page and select the Clouds tab. Click Add Cloud below and select OneDrive in pop-up window. Click OK.

Add Onedrive

Step 3. Log into your OneDrive account and allow CBackupper access to your account. Then, you can reset Display Name or just click OK.

Display Name

Step 4. Re-select FTP in the “Add Cloud” window, enter your Synology NAS address, port, user name and password. Follow the instruction to add it.

Add Synology Nas

Step 5. Back to the home page and click Create task under the Task tab. And choose files or folders you want to backup from Synology NAS as a source, click OK.

Add Source

Step 6. Click Add Destination, choose OneDrive as backup destination.

Add Destination

Tip: If your OneDrive cloud is running out of space, you can tick “Alternate Target” and choose another cloud. Once the destination cloud is full, your files will be backed up to alternative clouds.

Step 7. At last, click OK -> Start Backup to start your Backup Task.

Step 8. If you want to backup files to OneDrive automatically, you can choose Schedule to set a time and it will back up your files regularly. And click OK.




  • Files are all transmitted using 256-bit AES encryption for SSL.

  • Data will be stored in your own cloud disk.

  • CBackupper will not save or cache your data and password.

This is all about how to backup your Synology NAS to cloud easily and quickly, choose the one based on your own needs. I hope these two methods can help you manage your files more efficiently and protect your data to avoid data loss caused by unexpected situations.