When storing files, security is always top of mind, es­pe­cial­ly when it comes to sensitive data. Hosting your own cloud service is a great way to ensure your files are secure. Two powerful solutions for self-hosted cloud storage are ownCloud and its spin-off Nextcloud.

Overview of ownCloud vs. Nextcloud

ownCloud Nextcloud
Website owncloud.com nextcloud.com
Developer ownCloud GmbH Nextcloud GmbH
Release year 2010 2016
License Open source / pro­pri­etary Open source
Clients for Cloud access Windows, macOS, Linux, iOS, Android Windows, macOS, Linux, iOS, Android
En­ter­prise support & features (En­ter­prise Edition) (En­ter­prise Edition)
Option to self-host

(Updated: March 2025)

ownCloud vs. Nextcloud in-depth com­par­i­son of the open-source clouds

On June 2, 2016, Frank Kar­l­itschek, founder of ownCloud, left the fi­nan­cial­ly weakening ownCloud project as did most of the de­vel­op­ers. In the same year, the newly formed team released its own cloud solution, which focused more on col­lab­o­ra­tion. It was named Nextcloud. The software has been con­tin­u­ous­ly expanded over the past few years and today, the platform is one of the most popular self-hosted col­lab­o­ra­tion solutions in the world.

Licensing issues were a sig­nif­i­cant factor in the split. The key dif­fer­ence between the two open-source clouds lies in their approach to licensing. This is because ownCloud restricts certain func­tion­al­i­ties to its En­ter­prise edition, which requires a com­mer­cial license, whereas Nextcloud offers all of its com­po­nents under the free AGPLv3 license. In what follows, we will explore the two cloud ap­pli­ca­tions and the features that set them apart.

ownCloud

ownCloud Pros ownCloud Cons
Desktop clients and mobile apps are available for all major platforms Updates are irregular
Minimal system re­quire­ments (hardware and software) Room for im­prove­ment in terms of security (slow bug fixing and vul­ner­a­bil­i­ty dis­clo­sure)
Highly ex­pand­able thanks to its modular structure (various apps are available in the mar­ket­place) Per­for­mance issues with many small files
A wide range of guides and extensive doc­u­men­ta­tion due to long-standing market presence Costs for support from de­vel­op­ers

The ownCloud project was launched by Frank Kar­l­itschek in 2010. It was intended to offer users a free al­ter­na­tive to com­mer­cial cloud services. Prior to this project, the German-born software developer had primarily been an active member of the KDE community, which is dedicated to the de­vel­op­ment of free software. At the heart of ownCloud is the server ap­pli­ca­tion ownCloud Infinite Scale, which can be installed on any server or web hosting space.

In terms of ad­di­tion­al software, man­u­fac­tur­ers have provided the following spec­i­fi­ca­tions for the current version of ownCloud:

ownCloud system re­quire­ments
Operating system Ubuntu 20.04 and 22.04, Debian 10, SUSE Linux En­ter­prise Server 12 (SP 4/5) and 15, Red Hat En­ter­prise Linux 7, 8, and 9, openSUSE Leap 15.2
Database MySQL 8+, MariaDB 10.2 to 10.11, Oracle 11 and 12, Post­greSQL 9 to 14, SQLite (not for pro­duc­tion!)
Web server Apache 2.4 (with prefork-MPM module and mod_php)
Scripting language PHP 7.4+

When the ownCloud server is installed and set up, files can be uploaded to it using the desktop program. This is a Digital Guide article ex­plain­ing how to do this on a Raspberry Pi. In addition to free desktop clients for macOS, Windows and Linux, there are also mobile apps for Android and iOS in the Google Play Store and Apple App Store. Using these ap­pli­ca­tions, you can create your own local directory, which can be syn­chro­nized with the cloud server whenever and wherever you want (assuming you are connected to the internet). Thanks to the file-sharing feature, files can also be shared with other users (password-protected if necessary).

Image: ownCloud: Windows client
The ownCloud client interface provides in­for­ma­tion about which files have already syn­chro­nized and which have not.

For busi­ness­es, the ownCloud team op­tion­al­ly offers pro­fes­sion­al, paid support, with two different sub­scrip­tion models available (as of March 2025):

  • The Standard Sub­scrip­tion includes email support on business days and starts at €5.24 (just under $6) per user per month (for a minimum of 25 users). The price decreases as the number of users increases. This support model is tied to the standard free AGPLv3 license, meaning that all mod­i­fi­ca­tions to the cloud software must be shared with the community.
  • The more expensive En­ter­prise Sub­scrip­tion, starting at €15.67 (around $17) per user per month (for a minimum of 25 users), is linked to the ownCloud Com­mer­cial License. It provides companies with global email and phone support, along with access to a range of exclusive en­ter­prise features.

ownCloud offers various ad­di­tion­al features that optimize the cloud’s usability. Here is an overview of the product:

ownCloud Features
Activity stream The activity stream provides an overview of all the cloud users’ actions. When a file is uploaded, edited or shared, it is au­to­mat­i­cal­ly recorded in this event log.
Managing groups and user access Create groups to make file sharing easier for a specific group of users. Access to shared content can also be re­strict­ed based on different per­mis­sions (delete, modify, create, share).
Unlimited file size The online storage software allows you to store and share files of any size. ownCloud the­o­ret­i­cal­ly supports files up to 8 exabytes in size.
Col­lab­o­rate on Office documents Thanks to in­te­gra­tions of Office suites such as Collabora Online or On­ly­Of­fice for ownCloud (requires En­ter­prise or ownCloud SaaS), Office documents can be edited in a team directly via the web frontend of the cloud storage service.
File saving and ver­sion­ing Files can be locked at any time to prevent com­pli­ca­tions when accessing them. ownCloud also ensures that the clouds are versioned, so previous versions can be restored at any time.
Im­per­son­ation Admins can log in as any user if the cloud storage is con­fig­ured ap­pro­pri­ate­ly. This can be helpful when dealing with technical issues, for example.
Note

Other features can be added using ownCloud Mar­ket­place apps.

The ownCloud plan is rounded off with various security features, although there are some minor dif­fer­ences between those included in the free version and the En­ter­prise edition.

ownCloud Standard ownCloud En­ter­prise
Server-side en­cryp­tion (AES-256)
Two-factor au­then­ti­ca­tion
SAML/SSO au­then­ti­ca­tion
Virus scanner (ClamAV)
Ran­somware pro­tec­tion
File firewall
Password rules
Audits logs
Tip

If you are unsure whether you need the en­ter­prise features for your cloud, you can test them for free for 30 days. All you have to do is request the test version via the contact form. You’ll then receive an email with the download link.

Nextcloud

Nextcloud Pros Nextcloud Cons
The interface design can be easily changed at any time to suit the user In the SME sector, this option is only rec­om­mend­ed with an external hosting service provider
Brute force pro­tec­tion and various other security features enabled by default Not all of the available add-on apps are as high-quality as the cloud solution itself
Provides file-sharing and other col­lab­o­ra­tion features, like audio and video en­ter­tain­ment Per­for­mance issues due to many small files
Rel­a­tive­ly fast updates for bugs or security vul­ner­a­bil­i­ties Developer support is paid

When Nextcloud was released for the first time in 2016 as an in­de­pen­dent spin-off of ownCloud, it was es­sen­tial­ly just an open-source version of the same software, but with a new design. Since then, Nextcloud GmbH, which includes Kar­l­itscheck and other former ownCloud de­vel­op­ers, has sped up their software redesign.

The basic ap­pli­ca­tion is Nextcloud Server and can be installed on almost any web hosting space or server. The de­vel­op­ment team rec­om­mends at least 512 MB of memory for stable cloud operation. Nextcloud does not differ sig­nif­i­cant­ly from its pre­de­ces­sor in terms of software re­quire­ments either.

Nextcloud system re­quire­ments
Operating system Ubuntu 22.04 LTS (rec­om­mend­ed), Ubuntu 24.04 LTS, Debian 12 (Bookworm), SUSE Linux En­ter­prise Server 15, Red Hat En­ter­prise Linux 8 and 9 (rec­om­mend­ed), CentOS Stream, openSUSE Leap 15.5
Database MySQL 8.0 or 8.4, MariaDB 10.6, 10.11 (rec­om­mend­ed), or 11.4, Oracle 11g, 18, 21, 23 (only as part of an en­ter­prise sub­scrip­tion), Post­greSQL 13, 14, 15, 16, 17, SQLite 3.24+ (only rec­om­mend­ed for testing and minimal instances)
Web server Apache 2.4 with mod_php or php-fpm (rec­om­mend­ed), NGINX with php-fpm
Scripting language PHP 8.2, 8.3 (rec­om­mend­ed), 8.4

Desktop clients are available for all common operating systems so that users can upload files onto the ready-to-use Nextcloud server. Windows and macOS users will find the in­stal­la­tion files on the program’s website. Linux users (openSUSE, Arch Linux, Fedora, Ubuntu, Debian) can find them in their Linux dis­tri­b­u­tion’s package man­age­ment. Free apps for Android and iOS can be used to access the server on mobile devices. The client allows one or more local folders to be syn­chro­nized with the server. Thanks to the file manager and file-sharing feature, all stored files can be easily viewed and shared with others in the cloud or via public links.

Image: Nextcloud web interface
Nextcloud website; Source: https://nextcloud.com/

Since a com­mer­cial license does not align with the phi­los­o­phy of the de­vel­op­ment team, all Nextcloud com­po­nents are ex­clu­sive­ly licensed under the free GNU AGPLv3 license. However, Nextcloud GmbH also offers paid en­ter­prise plans (starting at 100 users) that include pro­fes­sion­al support, col­lab­o­ra­tion tools, and various in­te­gra­tions. Customers can choose from four different pricing models:

  • Basic: Starting at €37.49 (around $40) per user per year (for a minimum of 100 users), this plan includes email support (response within three business days), access to the Nextcloud knowledge portal, and one year of long-term support.
  • Standard: At €67.89 (around $75) per user per year, this sub­scrip­tion offers branding, in­stal­la­tion review, phone support during official business hours, and one year of long-term support.
  • Premium: Priced at €99.99 (around $110) per user per year, the Premium plan provides planning security for 5+ years, extended phone and email support, and as­sis­tance with scaling cloud storage if needed.
  • Ultimate: Starting at €195 (around $210) per user per year, the Ultimate plan grants access to the full Nextcloud feature set, including 24/7 support, pro­fes­sion­al tool in­te­gra­tions, and a SIP bridge that connects Nextcloud Talk to pro­fes­sion­al IP telephony via a SIP provider.
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Nextcloud is not just limited to uploading and down­load­ing files, it is also packed with features that make it easy for both basic users and ad­min­is­tra­tors to simplify file storage:

Nextcloud Features
Workflow man­age­ment Workflow features such as file access control or automatic file capture help ad­min­is­tra­tors stay in control. Based on an easily con­fig­urable set of rules, certain actions can be blocked for specific user groups.
Server mon­i­tor­ing Nextcloud provides an overview of user ac­tiv­i­ties and informs users about actions like making changes or down­load­ing shared files, for example. The mon­i­tor­ing module also provides in­for­ma­tion on the per­for­mance and stability of your own cloud server.
In­te­grat­ed Office solutions Nextcloud Hub has natively in­te­grat­ed tools for real-time document man­age­ment. With popular solutions such as Collabora Online or On­ly­Of­fice, you can work together with other people on Office documents (Li­bre­Of­fice/Microsoft Office).
Branding & theming The theming app can be used to modify the look of your cloud. Without ad­di­tion­al costs, you can insert your own logo, select a different back­ground image and change your name and slogan.
Full-text search In com­bi­na­tion with the Apache Solr or Elas­tic­search indexing service, you can set up a full-text search for cloud storage. Solr can search through text, PDF, image, and audio files, as well as Office documents (Microsoft office and Li­bre­Of­fice).
Col­lab­o­ra­tion Work­spaces give Nextcloud users the ability to populate folders with notes, to-do lists and other col­lab­o­ra­tive tools. Users can edit this in­for­ma­tion in real time or mark it as done, for example. The dashboard also provides in­for­ma­tion about the status of other users: Are they online or offline? Have they opened a file or are they currently replying to a comment?
All-in-one in­stal­la­tion To simplify in­stal­la­tions for small and medium-sized companies, Nextcloud is available as an all-in-one Docker or VM image. Direct in­stal­la­tion in various cloud en­vi­ron­ments such as Azure and AWS is also possible.

Thanks to its modular structure, one of the cloud storage platform’s strengths is its high degree of ex­pand­abil­i­ty. Nextcloud apps can be used to add a wide range of func­tion­al­i­ty to different Nextcloud areas such as “In­te­gra­tion”, “Mul­ti­me­dia”, “Office & Text” and “Au­then­ti­ca­tion & Au­tho­riza­tion”. Nextcloud lists all of­fi­cial­ly supported ex­ten­sions in its app store. You will not only find doc­u­men­ta­tion and download links for the over 200 ex­ten­sions available, but also a guide on how to program modules.

Equally crucial to having an extensive range of features is the safe­guard­ing of data stored within “private” clouds via the software. This is why Nextcloud provides operators with effective tools to ensure the best possible pro­tec­tion:

Nextcloud Security & Pro­tec­tion
Server-side en­cryp­tion (AES-256) In addition to standard data transfer via SSL/TLS, all in­for­ma­tion can be encrypted on the server.
End-to-end en­cryp­tion Nextcloud enables files/folders to be stored and exchanged with end-to-end en­cryp­tion.
Brute force pro­tec­tion By default, Nextcloud provides pro­tec­tion against brute force attacks.
Content Security Policy 3.0 The open-source cloud’s web interface can be secured thanks to Content Security Policy 3.0 (CSP).
Two-factor au­then­ti­ca­tion Ad­min­is­tra­tors can enable or disable two-factor au­then­ti­ca­tion from the command line.
SAML/SSO au­then­ti­ca­tion Nextcloud supports SAML markup and single sign on.
Password rules Ad­min­is­tra­tors can set up password creation policies (login, file sharing).

To test Nextcloud, you do not have to download and install the cloud software. On the website, you can try a demo of the software and try out the features listed here for one hour.

What are the main dif­fer­ences between ownCloud and Nextcloud?

In many respects, it has become clear that Nextcloud is much more ambitious than ownCloud when it comes to col­lab­o­ra­tion. Since the 2016 release, Nextcloud has evolved from a simple file syncing and sharing solution to a premium al­ter­na­tive to cloud suites like Microsoft 365. The dif­fer­ences in terms of file storage and file sharing are only minor.

Key dif­fer­ences come when you look at add-on and security features. On the one hand, ownCloud’s licensing policy ensures that certain com­po­nents such as full-text search, workflow man­age­ment or branding are only available to paid En­ter­prise customers. Nextcloud users do not have these lim­i­ta­tions, as only support and update services cost extra.

With features such as in­te­grat­ed real-time document man­age­ment or audio and video calling, Nextcloud has outshone its pre­de­ces­sor in terms of func­tion­al­i­ty just as it has in terms of security. Built-in brute force pro­tec­tion, easily im­ple­ment­ed two-factor au­then­ti­ca­tion and server-side file en­cryp­tion are just a few of the Nextcloud security features worth men­tion­ing.

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