S4 Alternatives

S4 is described as '= Simple Secure Storage Service. S4 is Least Authority's secure off-site backup system for individuals and businesses' and is an app in the backup & sync category. There are more than 25 alternatives to S4 for a variety of platforms, including Mac, Windows, Linux, Web-based and Android apps. The best S4 alternative is Nextcloud, which is both free and Open Source. Other great apps like S4 are ownCloud, Duplicati, Seafile and IPFS.

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Alternatives
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Alternatives list

  1. e2ee cloud icon
     8 likes

    e2ee-cloud is a open source, self-hosted, end-to-end encryption software. You can upload and download files in your browser. All files and folders will be encrypted before upload and decrypted after download.

    Cost / License

    • Free
    • Open Source

    Application type

    Alerts

    • Discontinued

    Platforms

    • Online
    • Self-Hosted
    Good alternative?
     
  2. Backer icon
     4 likes

    Backer is a visual front end to the rsync command. It allows the user to select multiple folders and back them up to multiple locations. It stores your backup settings for you so that all your backups can be run easily using a single button click.

    144 Backer alternatives

    Cost / License

    Platforms

    • Mac
    • Linux
    Good alternative?
     
  3. Files Gallery icon
     4 likes

    Single-file PHP app that can be dropped into any folder, instantly creating a gallery of files and folders.

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Self-Hosted
    • PHP
    Good alternative?
     
  4. CmisSync icon
     23 likes

    Securely syncs files and folders to your enterprise file server (on-premise or private cloud), rather than to a public cloud.

    128 CmisSync alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    Good alternative?
     
  5. TeamDrive icon
     131 likes

    TeamDrive offers the missing link many other Synch&Share softwares lack. With the highest security standards TeamDrive becomes essential when sensitive data is concerned. Via a client users are able to transfer and share data.

    95 TeamDrive alternatives

    Cost / License

    • Paid
    • Proprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • openSUSE
    • Arch Linux
    • Manjaro Linux
    • Ubuntu
    Good alternative?
     
  6. Carbonite icon
     18 likes

    Carbonite offers all the tools necessary for protecting data from the most common forms of data loss, including ransomware, accidental deletions, hardware failures and natural disasters. From automated computer backup to comprehensive protection for physical and virtual server...

    Cost / License

    • Paid
    • Proprietary

    Application type

    Platforms

    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Software as a Service (SaaS)
    Good alternative?
     
  7. With Drive File Stream, you stream your Drive files directly from the cloud to your Mac or PC, freeing up disk space and network bandwidth.

    Cost / License

    • Free
    • Proprietary

    Application type

    Alerts

    • Discontinued

    Platforms

    • Mac
    • Windows
    Good alternative?
     
  8.  3 likes

    Nubo is a self-hosted file sharing application. It runs on macOS, Linux and Windows (64-bit versions only).

    45 Nubo alternatives

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Platforms

    • Self-Hosted
    Good alternative?
     
  9. Wasabi icon
     3 likes

    Storage made simple. Faster than Amazon's S3. Less expensive than Glacier.

    116 Wasabi alternatives

    Cost / License

    • Paid
    • Proprietary

    Application type

    Platforms

    • Online
    Good alternative?
     
  10. FileAgo icon
     1 like

    FileAgo is a easy and highly secure self-hosted file storage and collaboration platform for companies and teams. Compared to other solutions, FileAgo is an attempt to tackle the collaboration part in a slightly different matter.

    155 FileAgo alternatives

    Cost / License

    • Paid
    • Proprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Self-Hosted
    Good alternative?
     
  11. GS RichCopy 360 icon
     46 likes

    GS RichCopy 360 is the ONLY file copy utility that utilizes its own proprietary Multi-Threading technology that uses all available logical cores in the system.

    141 GS RichCopy 360 alternatives

    Cost / License

    • Paid
    • Proprietary

    Application type

    Platforms

    • Windows
    Good alternative?
     
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