Develop for Nextcloud

Write new applications, extend Nextcloud or integrate other software

Open Collaboration Services

Integrate an existing software or client into Nextcloud.

The Open Collaboration Services is an open standard and we welcome third party integration and input! Learn more.

Get involved

Open Source empowers you. Where a software-as-a-service might allow you to tweak and build connectors, with Nextcloud you can go all the way and enhance the server itself or apps from other authors with new API's and core functionality.

in action

Featured community app:
Nextcloud OCR

The app uses tesseract-js in the browser in order to extract text from images (png, jpeg, tiff) and PDFs and saves the output file to the source folder in nextcloud. That for example enables you to search in it.

Read the interview

Need help?

Stuck with your app?

We love to help!

in action

Featured community app:
Digital Imaging for Medicine

The DICOM Viewer allows the user to display and manipulate DICOM images with a streamlined sidebar and viewer, all without leaving Nextcloud. The sidebar parses DICOM files and displays all DICOM attributes, such as Patient ID, Patient Name, and Study Date/Time, in a convenient details panel. A critical search feature on the sidebar enables the user to quickly search for specific DICOM attributes.

Read about the DICOM viewer
in action

Nextcloud Include

Diversity strengthens a community. The Nextcloud Include initiative helps underrepresented groups to join the Nextcloud project, building an inclusive and diverse space where we collaborate and develop world class software.

Lear more and request mentoring

Have ideas on how to improve our developer information?

Sign up to our forum and join the discussion.

We love to hear your thoughts!

Why Nextcloud apps?

Big audience

There are between 200.000 and 300.000 Nextcloud servers on the web with tens of millions of users between them. A big audience exists for functionality which extends the most popular self-hosted productivity platform. The most downloaded apps on our app store are installed on over 100.000 servers and have millions of users!

Free promotion

We want you to be successful! If you create an app, extension or integration, Nextcloud will help you promote it. We are happy to work with you on a post for our blog, share the app over social media and you can present it at our conference.

Business opportunity

If you build an app, script, extension or tool as a business endeavor, we will be happy to support your effort. We love our ecosystem and want you to benefit of it! Perhaps we can commercialize it together, with us reselling your product or feature to our customers.

in action

Featured community app:

Nextcloud Cospend is a group/shared budget manager. It was inspired by the great IHateMoney.
You can use it when you share a house, when you go on vacation with friends, whenever you share money with others.

Read about Cospend


Nextcloud attends and organizes events where you can learn more about building apps and integrations!

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