Open Source iCloud AlternativesCloud Storage Services & File Sync Tools like iCloud

The best open source alternative to iCloud is Nextcloud. If that doesn't suit you, our users have ranked more than 50 alternatives to iCloud and many of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to iCloud are Filen, ownCloud, Proton Drive and Cozy.

filter to find the best alternatives

iCloud alternatives are mainly Cloud Storage Services but may also be File Sync Tools or Online Backup Tools.  Other popular filters includes iPhone + Cloud Storage. Filter by these or use the filter bar below if you want a narrower list of alternatives or looking for a specific functionality of iCloud.
iCloud iconiCloud
  107
  • ...

Store email, contacts, calendars, photos, music, books, apps and more in the cloud and access them on all your devices. iCloud also provides collaborative services for task management and notes and productivity apps for...

More about iCloud
More about iCloud
iCloud alternatives page was last updated Feb 9, 2025
  Suggest Alternatives
  1. Nextcloud icon
    Nextcloud icon

    Nextcloud

     1074 likes
    Copy a direct link to this comment to your clipboard

    On-premises solution offering file sync, universal data access and collaboration through Nextcloud Files, Talk, and Groupware. Ensures secure, controlled data storage for enterprise with powerful privacy tools including encryption, fine-grained access, and a bug bounty.

    139 Nextcloud alternatives
    Simple and powerful file sync & share

    License model

    • Free • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Self-Hosted
    • F-Droid
    • Cloudron
    Simple upload even for people who don’t have Nextcloud
    Great Android & iOS apps to sync your files.
    +3
    Very easy theming

    Properties

    1.  Privacy focused
    2.  Security-focused

    Features

    1.  File Sync
    2.  Calendar Integration
    3.  Sync Contacts
    4.  Ad-free
    5.  Two-factor Authentication
    6.  Cloud Sync
    7.  Team Collaboration
    8.  Hostable
    9.  On-premises software
    10.  Video Calling
    11.  CalDAV Support
    12.  Calendar Sync
    Nextcloud iconiCloud Icon

    Nextcloud VS iCloud

    Is Nextcloud a good alternative to iCloud?
     

    • Almost everyone thinks Nextcloud is a great iCloud alternative.

    • Nextcloud is the most popular Web-based, Windows, Android & Mac alternative to iCloud.

    • Nextcloud is the most popular Open Source & free alternative to iCloud.

    • Nextcloud is Free and Open SourceiCloud is Freemium and Proprietary
    • Nextcloud is Privacy focused and Security-focusediCloud is not according to our users
  2. Filen icon
    Filen icon

    Filen

     87 likes
    Copy a direct link to this comment to your clipboard

    Filen is a cutting-edge cloud storage provider that offers client-side, end-to-end, zero-knowledge encryption. Headquartered and operated entirely in Germany, Filen is at the forefront of combining comprehensive features with uncompromising privacy and security.

    50 Filen alternatives
    Filen screenshot 1

    License model

    • Freemium • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    Filen screenshot 1
    Filen screenshot 2
    +9
    Filen screenshot 3

    Properties

    1.  Privacy focused

    Features

    1.  End-to-End Encryption
    2.  File Sync
    3.  Two-factor Authentication
    4.  Dark Mode
    5.  Cloud Sync
    6.  Ad-free
    7.  AES Encryption
    8.  No Tracking
    9.  AES-256 Encryption
    10.  Synchronization
    11.  Automatic Backup
    12.  Encrypted Backup
    Filen iconiCloud Icon

    Filen VS iCloud

    Is Filen a good alternative to iCloud?
     
  4. ownCloud icon
    ownCloud icon

    ownCloud

     856 likes
    Copy a direct link to this comment to your clipboard

    A safe home for all your data – Access & share your files, calendars, contacts, mail & more from any device, on your terms.

    216 ownCloud alternatives
    ownCloud screenshot 1

    License model

    • Freemium • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Blackberry
    • Android Tablet
    • iPad
    • Self-Hosted
    • Software as a Service (SaaS)
    • Raspberry Pi
    • Cloudron
    ownCloud screenshot 1
    ownCloud screenshot 2
    +3
    ownCloud screenshot 3

    ownCloud Features

    1.  Calendar Integration
    2.  Self-hosted search
    3.  Autotagging
    4.  No installation required
    5.  Built-in Note Taker
    6.  SAML Single Sign-On
    7.  Virtual filesystem
    8.  WebDAV Support
    ownCloud iconiCloud Icon

    ownCloud VS iCloud

    Is ownCloud a good alternative to iCloud?
     
  5. Ad
    Screenshot
    Proton Drive icon

    Proton Drive

    Offering comprehensive privacy with end-to-end encryption, Proton Drive allows users to store, synchronize, and share files across various devices through web, desktop, and mobile apps. Free storage up to 5 GB, service remains op...

    https://proton.me
    Learn More
  6. Proton Drive icon
    Proton Drive icon

    Proton Drive

     88 likes
    Copy a direct link to this comment to your clipboard

    Offering comprehensive privacy with end-to-end encryption, Proton Drive allows users to store, synchronize, and share files across various devices through web, desktop, and mobile apps. Free storage up to 5 GB, service remains open-source and audited, ensuring file content and access control.

    38 Proton Drive alternatives
    Proton Drive screenshot 1

    License model

    • Freemium • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Tor
    Proton Drive screenshot 1
    Proton Drive screenshot 2
    +7
    Proton Drive screenshot 3

    Properties

    1.  Privacy focused

    Features

    1.  End-to-End Encryption
    2.  Dark Mode
    3.  File Sync
    4.  File Hosting
    5.  Two-factor Authentication
    6.  No Tracking
    7.  Ad-free
    8.  Cloud Sync
    9.  Automatic Backup
    10.  Shared Folders
    11.  Encrypted Backup
    12.  Integrated File Sharing
    Proton Drive iconiCloud Icon

    Proton Drive VS iCloud

    Is Proton Drive a good alternative to iCloud?
     
  7. Cozy icon
    Cozy icon

    Cozy

     131 likes
    Copy a direct link to this comment to your clipboard

    Choose simplicity, get Cozy. We all have a life and a digital life. Cozy gathers them. In your Cozy, you have all your personal data: pictures, health, bank, holidays, accessible only by you. Welcome to your new digital home.

    76 Cozy alternatives
    Automate the synchronisation of your files on your PC with your Cozy.

    License model

    • Freemium • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Self-Hosted
    • CouchDB
    • Go (Programming Language)
    Save your mobile pictures, they will be available on your PC and tablet.
    Share your photos and files with your friends and family.
    +4
    All your data (bills, contacts, health refunds, photos…) automatically imported ! More than 100 available providers! Timeline of Cozy Photos View of Cozy Drive

    Properties

    1.  Privacy focused

    Features

    1.  Cloud Sync
    2. Android icon  Android Sync
    3.  File Storage
    4.  Ad-free
    5.  Selective Synchronization
    6.  No Tracking
    7.  Two-factor Authentication
    8.  Shared Folders
    9.  End-to-End Encryption
    10.  Personal Information Manager (PIM)
    11.  Accounting Integration
    12.  Information gathering
    Cozy iconiCloud Icon

    Cozy VS iCloud

    Is Cozy a good alternative to iCloud?
     
  8. Seafile icon
    Seafile icon

    Seafile

     182 likes
    Copy a direct link to this comment to your clipboard

    Seafile is a professional open source cloud storage platform for organizations. It has complete file syncing and sharing features, reliable file storage and advanced privacy protection feature.

    113 Seafile alternatives
    Seafile screenshot 1

    License model

    • Freemium • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Self-Hosted
    Seafile screenshot 1
    Seafile screenshot 2
    +4
    Seafile screenshot 3

    Seafile Features

    1.  File Sync
    2.  File Versioning
    3.  Multi Platform
    4.  Isolated file libraries
    5.  Support for Amazon S3
    6.  Virtual hard drive
    7.  Install Syslinux
    8.  Sync Network Drive
    9.  Development API
    10.  Encrypted sync
    Seafile iconiCloud Icon

    Seafile VS iCloud

    Is Seafile a good alternative to iCloud?
     
  10. kDrive icon
    kDrive icon

    kDrive

     51 likes
    Copy a direct link to this comment to your clipboard

    kDrive is a Swiss online storage service that respects its users' privacy and makes storing, sharing & collaborating on files a breeze.

    28 kDrive alternatives
    kDrive screenshot 1

    License model

    • Freemium • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • F-Droid
    kDrive screenshot 1
    kDrive screenshot 2
    +9
    kDrive screenshot 3

    Properties

    1.  Privacy focused

    Features

    1.  WebDAV Sync
    2.  Encrypted Backup
    3.  Cloud Sync
    4.  File Storage
    5.  Real time collaboration
    6.  Two-factor Authentication
    7.  Dark Mode
    8.  Ad-free
    9.  Built-in viewer
    10.  Collaborative writing
    11.  Private gallery
    12.  Shared links
    kDrive iconiCloud Icon

    kDrive VS iCloud

    Is kDrive a good alternative to iCloud?
     
  11. Pydio icon
    Pydio icon

    Pydio

     127 likes
    Copy a direct link to this comment to your clipboard

    Pydio is the mature alternative to Dropbox and Box.com, to build your own box, on your own servers.

    70 Pydio alternatives
    Secure login

    License model

    • Freemium • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • Self-Hosted
    Nice UX
    Pydio screenshot 2
    +5
    EASY TO USE

    Top Pydio Features

    1.  Folder Sync
    2.  Folders
    3.  Dark Mode
    4.  No Tracking
    5.  Cloud Sync
    6.  File Hosting
    7.  Web file manager
    8.  Separated workspaces
    9.  Web-Based
    10.  Federated Cloud
    11. Microsoft OneDrive icon  Sync with Onedrive
    Pydio iconiCloud Icon

    Pydio VS iCloud

    Is Pydio a good alternative to iCloud?
     
  12. Puter icon
    Puter icon

    Puter

     59 likes
    Copy a direct link to this comment to your clipboard

    Puter is a privacy-first personal cloud that houses all your files, apps, and games in one private and secure place, accessible from anywhere at any time.

    38 Puter alternatives
    Puter screenshot 1

    License model

    • Free • Open Source

    Application types

    Platforms

    • Online

    Properties

    1.  Customizable

    Features

    1.  Cloud Hosting
    2.  File Sync
    3.  No registration required
    4.  No Tracking
    5.  Command line interface
    6.  Ad-free
    7.  Cloud Sync
    8.  Dark Mode
    9.  End-to-End Encryption
    10.  Real time collaboration
    11.  Encrypted Backup
    12.  Automatic Backup
    Puter iconiCloud Icon

    Puter VS iCloud

    Is Puter a good alternative to iCloud?
     
  13. Filestash icon
    Filestash icon

    Filestash

     35 likes
    Copy a direct link to this comment to your clipboard

    A Dropbox-like file manager that let you manage your data anywhere it is located: FTP, SFTP, WebDAV, Git, S3, Minio, Dropbox, Google Drive.

    236 Filestash alternatives
    File browser

    License model

    • Freemium • Open Source

    Application types

    Platforms

    • Online
    • Self-Hosted
    • Software as a Service (SaaS)
    Upload files
    Edit files
    +2
    Image gallery

    Properties

    1.  Lightweight

    Features

    1.  WebDAV Support
    2.  Web file manager
    3.  Document Sharing
    4.  Support for SFTP
    5.  S3 integration
    6.  S3 storage support
    7. Git icon  Git Support
    8.  Support for FTP
    9.  Secure File Sharing
    10.  Integrated FTP client
    Filestash iconiCloud Icon

    Filestash VS iCloud

    Is Filestash a good alternative to iCloud?
     
  14. Fileverse icon
    Fileverse icon

    Fileverse

     5 likes
    Copy a direct link to this comment to your clipboard

    Fileverse offers a suite of tools similar to Google Suite and Notion but with the difference that it enhances users’ privacy, independence, and creativity.

    104 Fileverse alternatives
    Fileverse screenshot 1

    License model

    • Free • Open Source

    Application type

    Platforms

    • Online
    Fileverse screenshot 1
    Fileverse screenshot 2
    +4
    Fileverse screenshot 3

    Properties

    1.  Privacy focused

    Features

    1.  Decentralized
    2.  No Tracking
    3.  Ad-free
    4.  Shared Folders
    5.  End-to-End Encryption
    6.  Encrypted Backup
    7.  Real time collaboration
    Fileverse iconiCloud Icon

    Fileverse VS iCloud

    Is Fileverse a good alternative to iCloud?
     
  15. Cloudreve icon
    Cloudreve icon

    Cloudreve

     6 likes
    Copy a direct link to this comment to your clipboard

    Self-hosted file management and sharing system, supports multiple storage providers.

    53 Cloudreve alternatives
    Cloudreve screenshot 1

    License model

    • Freemium • Open Source

    Application types

    Platforms

    • Online
    • iPhone
    • Self-Hosted

    Properties

    1.  Privacy focused
    2.  Lightweight

    Features

    1.  Ad-free
    2.  Built-in viewer
    3.  Two-factor Authentication
    4.  No Tracking
    5.  Shared Folders
    6.  Cloud Sync
    7.  End-to-End Encryption
    8.  Dark Mode
    9.  Golang
    Cloudreve iconiCloud Icon

    Cloudreve VS iCloud

    Is Cloudreve a good alternative to iCloud?
     
12 of 23 iCloud alternatives