Email, office &
collaborative tools

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Open Web Systems provides secure, open source email & personal Nextcloud Hub accounts from just £4/month

nextcloud open source email


We will never sell your data to anyone else. Secure your data with powerful file access control, multi-layer encryption, machine-learning based authentication protection and advanced ransomware recovery.

Open Source

Open source

Enjoy constant improvements from a thriving and transparent, entirely open-source community development model, free from lockins, paywalls, advertising and covert surveillance.


Open Web Systems is a collaboration between The Open Co-op and Collective Tools and is governed by its members as a cooperative. Together we are building the regenerative, commons economy.

What do you get?



Your own email address with 5GB of storage space, which is easy to setup on both desktop and mobile. Secure, easy to use and free from surveillance.



Your personal, customisable, welcome screen where you can place  quick links to your most important tools and resources – and search across all of your files and applications at the same time.



Create documents and spreadsheets and collaborate with others via desktop, mobile and web. Find files with powerful search, share your thoughts in comments or lock files until you are done with them.



Your photo and video timeline, featuring favorites and tagging, slideshows and easy sharing of photos or albums.



Sync contacts from various devices with your Nextcloud and edit them online. Fully integrated with Mail and Calendar. Sync birthdays and other recurring events and easily share your contacts.



Sync events from various devices and edit them online. Integrated with Contacts, Tasks and WebCal. Invite people to your events, see when they’re available. Get alarms for events inside your browser and via email. 



Notes is a distraction free note taking app with categories and favorites for better organization of notes, which supports formatting using Markdown syntax.



Deck is a kanban style tool for planning and project management. Add tasks to cards, order them, add files, notes and labels for even better organization. Share and discuss tasks with your team via comments and keep track of changes in the activity stream.



Create tasks with start and due dates, mark them as important and share them between users. Tasks can be synchronized using CalDav, and downloaded as ICS files using the download button for each calendar.

From the Blog

switch to surveillance-free email

How to switch to surveillance-free email

If you’re concerned about the privacy of your email – and the data which your email provider shares with other companies – follow this guide to switch to surveillance-free email....

Open source email

Open source email

What is open source email? The term ‘open source email’ refers to email systems which use open source software. An email viewer is called an email client, so open source...

Switch to Open Web Systems