Comparison of online backup services

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This is a comparison of online backup services.

Online backup is a special kind of online storage service; however, various products that are designed for file storage may not have features or characteristics that others designed for backup have. Online backup usually requires a backup client program. A browser-only online storage service is usually not considered a valid online backup service.

Online folder sync services can be used for backup purposes. However, some online folder sync services may not provide a safe online backup. If a file is accidentally locally corrupted or deleted, it depends on the versioning features of a folder sync service, whether this file will still be retrievable.

Comparison

More information Provider, Windows1 ...
Provider Windows1 Linux1 Mac1 Android1 iOS1 Encrypted storage Zero knowledge2
Secure Key
Management3[1]
 Limited MB plan4 Unlimited MB plan4 $/MB plan4
Unlimited BW 16
Unlimited Transfers
 Cloud hosted Net Drive5 Sync7
Autodetect
changes12
 Public file hosting8
Physical media
restore9
 Server location(s)10
Free online storage
(non-trial)13
 Maximum per-file size
External hard drive
support14
Hybrid Option15
 Green Hosting
Backblaze Yes B2 only Yes Yes Yes Yes
[2]		 No
[2] Company must be given passphrase (to private key) to restore any data.		 No No Yes No No ? Yes Yes Yes US, Europe 10 GB
[3]		 No limit Yes No
Baidu Cloud Yes Yes Yes Yes Yes Yes
[4]		 No ? No No Yes ? Yes Yes Yes China 2000 GB 4 GB (Non-member) 10 GB (Member) 20 GB (Super Member).
[5]		 ?
Barracuda Backup Service Yes Yes Yes Yes
[6]		 No ? No fee per computer No Yes ? Yes
[citation needed]		 Yes No Yes US, Canada, Asia-Pacific, Europe No ?
Box Yes No Yes Yes Yes Yes
[7]		 No
[7]		 ? Yes No ? Yes
[8]		 Yes
[9]		 Yes US 10 GB 250 MB (Free) 5 GB (Paid)
Carbonite Yes No Yes Yes Yes Yes Partial, optional for Windows only
[10]		 ? Yes (Business only) Yes (Home only) No
[11]		 Yes
[12]		 ? Yes Yes Yes
[13]		 US No 4 GB Yes
[14]		 Yes
CloudMe Yes Yes Yes Yes Yes No, but 3rd party apps available
[citation needed]		 ? No Yes ? Yes
[15]		 Yes Yes Sweden 3 GB 150 MB (Free Accounts) No limit (Premium Accounts) No Limit No
Comodo Backup Yes No No Yes
[16]		 No ? Yes No Yes (5) ? No No No US No
CrashPlan Yes Yes Yes Yes Yes Yes
[17]		 Yes, except for web restore
[18]		 Yes Yes, 10TB No No Yes
[19]		 ? No No Yes
[20]		 No No US, Australia
[21]		 No No Limit Yes
[22]		 No
Dropbox Yes Does not work on filesystems other than ext4 and btrfs Yes Yes Yes Yes No
[23]		 ? Yes ? No Yes Yes Yes 2 GB No Limit
[24]		 Yes
[25]		 No
Dropmysite Yes Yes Yes Yes No ? Yes No No Yes ? Yes Yes Yes Global 2 GB No limit ?
Egnyte Yes Yes Yes Optional
[26]		 Optional
[26]		 ? ? Yes
[27]		 Yes Yes Yes US No No limit ?
ElephantDrive Yes Yes
[28]		 Yes Yes
[29]		 Yes Optional (off by default)
[30]		 ? Yes No ? Yes
[31]		 Yes
[32]		 Yes Yes
[33]		 US No Yes ? No, Amazon AWS
[34]
[35]
Google Drive Yes No, no provider-sanctioned Linux support.
[36]
[37]
[38]		 Yes Yes Yes Yes No ? No, Limited to 5 TB per user. See comments for details.
[39]		 Yes Yes Yes No Yes Yes Yes US, Worldwide 15 GB 5 TB
[40]		 Yes: 78% (supplied) 100% (matched)
[41]		 No
iCloud Yes No Yes No Yes Yes Optional (off by default)
[42]		 ? No No Yes ? ? Yes ? ? China for mainland China accounts;
[43]
unknown for others		 1 GB (everyone)
[44] 5 GB (Apple users only)
[45]		 No Yes, 94%
[34]		 No
iDrive Yes Yes, but one has to manually run perl scripts.
[46]		 Yes Yes Yes Yes
[47]		 Optional (excludes web interface)
[48]		 No No Yes
[49]		 ? Yes Yes Yes Yes unknown 10 GB US Yes
Jumpshare Yes No Yes No Yes Yes
[50]		 Yes No No Yes
[51]		 ? Yes Yes Yes No US, Europe 2 GB 250 MB on free, Unlimited on Jumpshare Plus Yes: 75% (supplied) 100% (matched)
[52]
Jungle Disk Yes Yes Yes Yes Yes Yes
[53]		 Yes
[53]		 Yes Yes Yes ? Yes
[54]		 Yes Yes Yes US, Europe No No limit in Backup Vault Yes Partial, Amazon AWS
[34]
[55] or Rackspace Cloud Files.
KeepVault Yes No No Yes
[56]		 ? Yes No Yes ? Yes US 20 GB
Livedrive Yes No Yes Yes Yes No No ? Yes Online Backup only No Yes ? Yes (paid-only)
[57]		 Yes
[58]		 Yes Yes Yes UK No No limit Yes
MediaFire Yes Upload only Yes Yes Yes No No ? Yes No Yes Yes ? No Yes Yes Yes US 10 GB No Limit No No
MEGA Yes Yes Yes Yes Yes Yes Yes Yes
[59]		 Yes No Yes Yes No
[60]		 No Yes Yes, using MEGA Desktop App Yes No Europe, New Zealand 20 GB No limit No No
MiMedia Yes No No Yes
[61]		 No ? Yes No Yes Yes No
[62]		 No Yes No No US 7 GB 3 GB Yes
OneDrive Yes No, see note
[63]		 Yes Yes
[64]		 Yes Yes
[65]		 No ? Yes No Yes No Yes 5 GB for new users, 25 GB for older users 100 GB
[66]		 Yes: 75% sourced 100% matched No
Proton Drive Yes No Yes Yes Yes Yes
[67]		 Yes
[67]		 Yes Yes No 5 GB
SpiderOak Yes Yes Yes Download Only Download Only Yes
[68]		 Yes
[69]		 ? Yes Business only (min 10 users) Yes Yes ? No
[70]		 Yes Yes Yes (2 GB free for 60 days only) No limit Yes Yes
[71]		 No
SugarSync Yes No Yes Yes Yes Yes
[72]		 No
[73]		 ? Yes No No ? Yes Yes Yes (SugarSync account needed for folders) No 100 MB (web) No limit (client app)
[74]
Syncplicity Yes No Yes Yes Yes Yes
[75]		 No
[75]		 ? Yes Yes Yes Yes US 10 GB
Tarsnap Yes: via WSL2[76] or Cygwin Yes Yes No No Yes Yes
[77]		 ? No No Yes ? No No No, Amazon AWS
[34]
[78]		 No
Tresorit Yes Yes
[79]		 Yes Yes Yes Yes Yes Yes
[80]		 Yes No Yes Yes Yes Yes
[81]		 Yes Yes Yes No upon choice
[82]		 3 GB
[83]		 0.5 GB (free), 10 GB (paid)
[84]		 Yes No
Unitrends Vault2Cloud Yes Yes Yes Yes
[85]		 No ? No Yes Yes ? Yes
[citation needed]		 Yes No Yes US No
Yandex.Disk Yes Yes
[86]		 Yes Yes Yes No
[87]		 No ? Yes ? Yes
[88]		 Yes Yes Yes Russia 10 GB 50 GB
Zmanda Cloud Backup Yes No No Optional
[89]		 Optional
[89]		 ? Yes ? Yes
[citation needed]		 Yes US, Europe, Singapore, Japan No
[90]		 No limit Yes Yes Partial, Amazon AWS or Google Cloud Storage
[34]
[91]
Close

Legend

  • ^1Windows/Linux/Mac/iOS/Android/BlackBerry: Supported operating systems for thick client (native binary application), which provide background data transmission and setting services.
  • ^2Zero knowledge: The service provider has no knowledge of the user's encryption key, ensuring privacy of the backup data.[92]
  • ^3Secure Key Management: If yes, the user holds and controls the encryption key. If no, the service provider holds and controls the encryption key.
  • ^4 Payment options/plans:
    • Limited MB plan: Pay per computer. Additional fee for storage over a threshold.
    • Unlimited MB plan: Pay per computer. Storage per computer is unlimited.
    • $/MB plan: Pay per unit of storage, but unlimited computers may share that storage.
  • ^5Cloud hosted Net Drive: Cloud can serve storage over WebDAV, SMB/CIFS, NFS, AFP or other NAS protocol, allowing files to be streamed from the cloud. A change made to the cloud is immediately accessible to applications on all clients without needing to pre-download (sync) the file in full.
  • ^7Sync: Synchronization between computers, and/or mobile devices (PDA, MDA,...)
  • ^8Public Internet file hosting
  • ^9Restore via physical media
  • ^10Server location: Countries where physical servers are located. Where the data will be located.
  • ^11 Still in Beta version
  • ^12 Whether the desktop client (if available) can detect and upload changes without scanning all files.
  • ^13 Many backup services offer a limited free plan, often for personal use. Often it is possible to increase the free backup limit through coupons, referrals, or other means that are not included in this column. This column also does not include free trials that are only available for a limited period of time.
  • ^14 External hard drive support: Can refer to an alternate backup destination or whether the service can back up external drives.
  • ^15 Hybrid Online Backup works by storing data to local disk so that the backup can be captured at high speed, and then either the backup software or a D2D2C (Disk to Disk to Cloud) appliance encrypts and transmits data to a service provider. Recent backups are retained locally, to speed data recovery operations.
  • ^16 Unlimited BW: If bandwidth capping or limits are used on accounts.

Other features and limitations

Other notable limitations or features.

Baidu Cloud
Must be registered by verified phone first.
Box
Performance degrades after 10,000 files in sync folder. Technical limit of 40,000 files in sync folder. Does not sync .tmp files, Outlook PST files, hidden files (hidden folders are synced), or any file or folder with \/*?":<>| in the name.[93]
Dropbox
Performance degrades with more than 300,000 files in sync folder. This is a soft limit.[94]
Google Drive
All account types are limited to 750 GB upload bandwidth per day.[95] Enterprise accounts are now limited to 5 TB per paid user on the account whereas prior to May 2023 only a single user was required for the advertised unlimited storage. Once 5 users are on an Enterprise account, more storage can be requested in 25 TB allotments once every 90 days, but extra storage is not guaranteed. The extra allotted storage is also removed when users on the account drop under 5. Thus unlimited storage is unfeasible to attain with Google Drive's new restrictions.
Sugarsync
Limited to 80,000 files per top level sync folder. To work around, one can create multiple syncing folders, but each top level folder is limited to 80k files. Also, Microsoft outlook and Apple iTunes databases are unsupported.[96]

Defunct services

See also

References

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