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Knowledge of Dropbox and Amazon S3

Dropbox is a file hosting service that can help sync files between computers and mobile devices to easily bring files, photos, and videos anywhere and share them with others. It's compatible with Mac, Windows, and Linux systems. Moreover, you are able to access the latest version of every file. As such, if you have updated a document through your phone, you can download the same document via your computer.

Amazon S3, whose full name is Amazon Simple Storage Service, is a fully redundant data storage system. Amazon S3 makes it easy to store and retrieve any amount of data at any time from anywhere. It can be employed to store any type of object which allows for use cases, such as storage for internet applications, backup and recovery, disaster recovery, data archives, data lakes for analytics, and hybrid cloud storage.

In this article, we mainly talk about Amazon S3, not Amazon Cloud Drive. Sure, you can find out the difference between Amazon Cloud Drive and S3 here.

Why Backup Dropbox to Amazon S3?

After reading the above information, you may not have a clear understanding of these two cloud drives. Below, you will see a detailed comparison between the two cloud storage accounts so that you can better understand them.

  Dropbox Amazon S3
Features Read and write to Dropbox from iOS & Android as if it were a local filesystem. Each object is stored in a bucket and retrieved via a unique, developer-assigned key.
Upload, download, search, and more from your web or mobile app. A bucket can be stored in one of several regions.
Get files from Dropbox into your web app with just a few lines of JavaScript. Write, read, and delete objects containing from 1 byte to 5 terabytes of data each. The number of objects you can store is unlimited.
Security Doesn't have end-to-end encryption. S3 possesses strong encryption features. It also presents users with efficient access management tools. Files in S3 are all private until you decide to make them public.
Pricing It offers users 2 GB of free space; then for 2TB, it charges you $9.99 per month. It costs you $0.023 per GB; the more space you purchase, the cheaper the price is.
Pros Easy to work with.
Integration with external services.
Accessible from all of my devices.
Simple and easy.
Web UI for uploading files.
Cons Personal vs company account is confusing. Permissions take some time to get right.
Replication slows down Internet connections and kills batteries and CPUs. Complex to set up.

Because Dropbox and Amazon S3 have their own advantages, many people have both storage tools at the same time. But what will you do if you want to realize Dropbox to S3 transfer?

How to Backup Dropbox to Amazon S3 with MultCloud?

To transfer Dropbox to Amazon S3, you might choose to manually do it by downloading files from your Dropbox account to your local PC and re-uploading these files to Amazon S3. That works well when you have a small amount of data to backup to Amazon S3 from Dropbox. What if you have lots of files to be transferred? Then you can turn to a third-party solution.

Here we will recommend a free multiple cloud storage manager, MultCloud. It provides the following main features: "Cloud Transfer", "Cloud Sync", "Cloud Backup", "Team Transfer", "Email Migration", and "Remote Upload". With the help of the "Cloud Transfer" function, you can quickly do Dropbox to S3 sync.

Step 1. Create Account

Before performing corresponding operations, you need to create one MultCloud account.

Sign Up
Sign Up

Step 2. Add Clouds

Click the "Add Cloud" button and follow the guide to add your Dropbox and Amazon S3 accounts to MultCloud.

Add Dropbox and Amazon S3
Add Dropbox and Amazon S3 to MultCloud


  • When you add Amazon S3 to MultCloud, you need to enter in Bucket Name, Access Key ID, and Secret Access Key so your Amazon S3 can be added to MultCloud.
  • If you do not know how to get the Access Key ID and Secret Access Key, please refer to the tutorials to get your AWS Access Key ID and Secret Access Key.

Step 3. View Accounts

After adding your Dropbox and Amazon S3 accounts to MultCloud successfully, they will be listed under “My Cloud Drives” in the left panel and you can manage them.

Manage Dropbox and Amazon S3
Add Dropbox and Amazon S3 to MultCloud

Step 4. Transfer Dropbox to Amazon S3 with “Cloud Transfer”

Create a "Cloud Transfer" task to move Dropbox files to Amazon S3. Select Dropbox as the source, and select Amazon S3 as the destination location. Click “Transfer Now” and wait for the Dropbox S3 integration to complete.

Backup Dropbox to Amazon S3
Backup between Dropbox and Amazon S3


  • Cloud Transfer” can help transfer the whole drive as the source. If you want to back up the entire Dropbox to Amazon S3, you could choose Dropbox as the source while creating the task.
  • MultCloud supports the “Schedule” feature. If you want to back up files from Dropbox to Amazon S3 regularly, you can enable this feature after upgrading.
  • If there are dozens of terabytes of data to back up, to get it done as soon as possible, you could also upgrade your account to the premium account so MultCloud uses 10 threads to transfer your files.

More about MultCloud

You can easily backup Dropbox to Amazon S3 accounts in just four steps with the help of MultCloud. In addition to the “Cloud Transfer” feature, MultCloud also has “Cloud Sync”, “Remote Upload” and other features, such as share, copy, paste, download, and rename.

"Cloud Sync" can help sync one cloud to other clouds. If you are looking for solutions to sync Google Photos to Dropbox, you can make full use of it. Using other functions supported by MultCloud, you can easily perform some operations on files on different cloud drives, just like performing operations in Windows Explorer.

As a cloud file manager, except for the cloud drives mentioned above, it supports other clouds, including Google Drive, G Suite, iCloud Photos, Flickr, Box, SugarSync, Alfresco, Hubic, Evernote, Gmail, OneDrive, MEGA, CloudMe, Cubby, MyDrive, WEB.DE, Yandex, HiDrive, MySQL, MediaFire, ownCloud, ADrive, BaiDu, WebDav, and FTP/SFTP, etc., at present, so you can manage multiple accounts within one account.

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