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Overview of NAS and Dropbox


NAS (Network Attached Storage) is a special storage service that not only allows individuals and businesses to store precious files, but also makes it easier for users to access and manage files anywhere, anytime. NAS is different from traditional hard drives and modern cloud drives. Instead, it integrates the merits of the traditional hard drive and the modern cloud drive.


Dropbox is one of the most popular and practical cloud storage services and has gained a large user base around the world. As a professional cloud storage service, Dropbox offers users a seamless way to transfer files and makes it easier to collaborate with teammates. Meanwhile, you can rename, share, download, upload, etc. on Dropbox without any effort.

Why Backup NAS to Dropbox?

Although NAS is an excellent cloud storage service and brings much convenience for users, it has some limitations. Hence, it is recommended to backup files from NAS to Dropbox for data protection. Why should choose Dropbox? There’re some merits:

  • More Cost-Effective. The price for NAS is much more expensive than Dropbox. For example, if you want to buy a Synology NAS, the basic plan is 189.99USD with only 2 bays. If you want more bays, you have to pay more. Contrastingly, you will get 2GB for free when using Dropbox, and only 9.99USD for 2TB/month.
  • More Secure. Sometimes NAS is badly affected by hardware malfunction. If the NAS device itself is broken, it will be difficult and cumbersome to maintain. Whereas Dropbox will be updated from time to time and won’t be influenced by hardware failure and natural disasters.
  • Easier to Add More Storage. When finding storage of your NAS is limited, you need to purchase more bays from online shops and wait for some days. However, you can add more Dropbox space in minutes by upgrading your account. 

So, how do I backup my NAS drive to Dropbox? Don’t worry! I will introduce 3 step-by-step methods to you.

How to Backup NAS to Dropbox Easily

The easiest way is to use a FREE and professional cloud to cloud backup service – MultCloud. As a practical multiple cloud storage service, MultCloud not only allows you to manage different cloud services in only one place, but also enables you to back up files from one cloud to another. Currently, MultCloud supports NAS, Dropbox, Google Drive, OneDrive, Google Photos, Flickr, MEGA, etc.


Why Choose MultClout to Backup Files from NAS to Dropbox?

  • Easy to Use. The interface of MultCloud is simple and intuitive. You can have a basic view of the main features of MultCloud by viewing the navigation bar on the left side. Also, you don’t need to read long and complicated tutorials before starting a task.
  • Scheduled Backup. MultCloud allows you to set up scheduled backup tasks. That’s to say, you can backup files across clouds at a regulated time, daily, weekly and monthly. In this way, you don’t need to spend much time overseeing the backup process anymore.
  • Leading Backup Speed. Compared to competitors, MultCloud provides leading backup speed to help you accomplish backup tasks as quickly as possible.
  • Restore Files Effortlessly. MultCloud offers the feature called Manage Version. In other words, if the files are missing somehow after backing up files with MultCloud, you can restore the files easily by selecting certain backup tasks in the list. 

Now, refer to the following content to learn detailed steps to backup NAS to Dropbox with MultCloud, taking “backup Synology NAS to Dropbox” as an example.

Step 1: Visit MultCloud on the web and sign up for an account free. Alternatively, you can sign in with your Google/Facebook account directly.

Sign Up
Sign Up

Step 2: Hit the Add Cloud tab, and press the icon of NAS to grant access to MultCloud by following the guidance it shows to you. Then, apply the same way to add Dropbox.

Add Dropbox and NAS
Add Dropbox and NAS

Step 3: Then, head to Cloud Backup on the left navigation bar. Then select Synology NAS as the source directory and Dropbox as the target directory. At last, click on the Backup Now button.

Backup NAS to Dropbox
Backup NAS to Dropbox

Tip: If you want to set up scheduled backup tasks, you can press the Schedule tab on the lower side.

In this way, files from Synology NAS will be backed up to Dropbox quickly and seamlessly. Similarly, if you want to backup Google Photos to Synology NAS, you can also take advantage of MultCloud. The only difference is to select Google Photos as the original directory and Synology NAS as the target directory.

Apart from backing up files across cloud services, you can also perform many basic functions on clouds with MultCloud, including uploading, downloading, sharing, renaming, copying, etc. Moreover, transfer files from one cloud to another. For example, if you want to transfer S3 bucket to another account, the Cloud Transfer feature of MultCloud can do you a favor.

How to Backup NAS to Dropbox Manually

If you don’t want to utilize any third-party service, you can backup files from NAS to Dropbox in traditional ways, namely taking advantage of the download-and-upload method, or a built-in service – Synology Cloud Sync.

Way 1: Download and Upload 

Downloading and uploading is the simplest way that most people would apply when they have files to backup across clouds. Here’s what you should follow:

Step 1: Sign in to your Synology NAS on the web and head to your File Station.

File Station
File Station

Step 2: Select the files you want to backup and then download them to your local PC.
Step 3: Log in to your Dropbox on the web, and press the Upload icon on the right to upload what you’ve downloaded to it.

Tip: If you only have a small number of files to backup, you can use this method. Or, the download-and-upload process will be stuck if you have a large number of files.

Way 2: Backup NAS to Dropbox via Synology Cloud Sync

If you find the download-and-upload method is time-consuming, you can turn to Synology Cloud Sync. This service is built-in Synology NAS, which aims to help you sync files from Synology NAS to another cloud, and vice versa. Let’s figure out how to do it:

Step 1: Go to your Synology NAS. If you haven’t installed Cloud Sync, you should head to the Package Center to search Cloud Sync, and install it. Then, launch it.

Open Cloud Sync
Open Cloud Sync

Step 2: Click on the “+” icon on the left. Then press the Dropbox icon. After that, hit the Next button.

Select Dropbox
Select Dropbox

Step 3: Enter the following box according to your situation. 

  • Local path: Select a folder on Synology NAS to backup to Dropbox.
  • Remote Path: Select a folder on Dropbox to store files from Synology NAS.
  • Sync direction: There’re 3 different sync modes. To backup Synology NAS to Dropbox, you should choose Upload local changes only. In this way, files from Synology NAS will be backed up to Dropbox.

After those steps, you can press the Next tab and then click Apply to start the sync task.

Upload Local Changes Only
Upload Local Changes Only

Tip: Even though Synology Cloud Sync offers you an easy way to sync files from Synology NAS to Dropbox, it’s not a real backup. That’s to say, if files are lost both on Synology NAS and Dropbox, it’s tough to restore.


You’ve learned 3 easy and free methods to backup NAS to Dropbox. In a nutshell, you can utilize a third-party service – MultCloud, the download-and-upload method as well as Synology Cloud Sync. If you choose to use MultCloud, you can backup files from NAS (Synology NAS, QNAP NAS, etc.) to other clouds seamlessly.

Besides, MultCloud offers you other practical features such as Cloud Sync and Remote Upload. For example, if you want to sync Dropbox with NAS, MultCloud will work it out easily.

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