Most businesses share files through a public cloud service. It is convenient, but it means your documents live on someone else's platform, under their terms, in a location they choose. Nextcloud is an open source alternative: a file sync and sharing platform you can run on your own server or with a hosting provider of your choice, with desktop and mobile apps that feel familiar to anyone who has used mainstream cloud storage.
What Nextcloud does
At its core, Nextcloud provides:
- File sync: desktop clients for Windows, macOS and Linux keep chosen folders synchronised across devices.
- Sharing: share files and folders with colleagues, groups or external people via links, with optional passwords, expiry dates and download restrictions.
- Mobile apps: access files from phones, including automatic photo upload.
- Web interface: browse, preview, version and restore files from a browser.
- Versioning and trash: recover earlier versions or deleted files.
Beyond files, Nextcloud offers optional apps for calendars, contacts, chat and video calls (Nextcloud Talk), and collaborative document editing when integrated with an office suite such as Collabora Online or ONLYOFFICE. You can enable only what you need.
The server software is licensed under the AGPL. Nextcloud GmbH, the company behind it, sells enterprise subscriptions with support and additional services. Check the official Nextcloud website for current editions and terms.
Why businesses choose Nextcloud
Data control
You decide where data is stored: on your premises, in a specific country, or with a provider you trust. This can help with data protection obligations and with customers who require their information to stay in particular jurisdictions.
Integration with existing infrastructure
Nextcloud can authenticate users against LDAP or Active Directory, use single sign-on, and connect to existing storage such as network shares or S3-compatible object storage. That lets it act as a modern front end to storage you already own.
Cost at scale
There is no per-user licence fee for the community version. Costs come from hosting, storage, administration and, optionally, an enterprise subscription. For organisations with many users or large volumes of data, this can compare favourably with per-user cloud plans, though you should model it honestly, including staff time.
No single-vendor dependence
Your data stays in standard formats on storage you control, so moving away later is straightforward.
Nextcloud vs public cloud storage
| Consideration | Nextcloud (self-hosted) | Public cloud storage |
|---|---|---|
| Data location | You choose | Provider's choice, sometimes selectable by plan |
| Setup effort | Server, storage, security and configuration needed | Sign up and go |
| Maintenance | Your responsibility or your provider's | Handled by the vendor |
| Availability | Depends on your hosting and design | Backed by large-scale infrastructure |
| Customisation | High: apps, branding, integrations | Limited to the vendor's options |
| Pricing | Infrastructure and support costs | Per-user subscription |
The honest summary: Nextcloud gives you control and flexibility, and in return asks you to take responsibility for reliability and security.
Deploying Nextcloud for business
Hosting and sizing
Nextcloud runs on Linux with a web server, PHP and a database (MariaDB/MySQL or PostgreSQL are the common choices). For a small team, a modest virtual server is enough. Larger deployments benefit from Redis for caching and file locking, a tuned database, and separate or object-based storage. Plan storage growth, including file versions and trash, which can consume more space than expected.
Security essentials
- Serve it only over HTTPS with a valid certificate.
- Enforce two-factor authentication, at least for administrators and external-facing users.
- Set sensible sharing policies: default expiry for public links, password requirements and limits on who may share externally.
- Keep the server, PHP, database and Nextcloud itself updated. The admin panel includes a security and setup check; act on its warnings.
- Enable brute-force protection and review logs.
- Consider server-side encryption carefully: it protects data on external storage but adds overhead and makes key management critical.
Backups
Back up three things: the data directory, the database and the configuration. Store backups off the server, ideally in a different location, and regularly test restoring them. File versioning is not a backup; it lives on the same system.
Upgrades
Nextcloud publishes major releases regularly, and older ones reach end of life. Upgrade one major version at a time, check that your enabled apps are compatible, and test on a staging copy if the installation is business-critical.
Rolling it out to staff
- Define folder structure and permissions by team before migrating data.
- Migrate in stages, starting with one department.
- Install desktop clients with selective sync, so laptops do not download everything.
- Train users on sharing safely, especially external links.
- Retire the old system once the move is complete, to avoid two sources of truth.
Is Nextcloud right for you?
Nextcloud suits organisations that need control over where data lives, want to integrate with existing identity and storage systems, or have enough users to make self-hosting economical. It is less suited to very small teams with no technical support who simply need files to sync. Our open source solutions include Nextcloud deployment and integration, while server management and cloud solutions cover the hosting, updates and backups that keep it dependable.
Key takeaways
- Nextcloud is an open source, self-hostable platform for file sync, sharing and collaboration.
- It offers data control, integration and flexible costs, in exchange for running it yourself.
- Secure it with HTTPS, two-factor authentication, sensible sharing rules and prompt updates.
- Back up data, database and configuration separately from the server, and test restores.