Open Source Google Workspace Alternatives

The best open source alternative to Google Workspace is CryptPad. If that doesn't suit you, our users have ranked more than 25 alternatives to Google Workspace and eight of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Google Workspace are Nextcloud Hub, Zimbra Collaboration Suite, Kolab Community and WikiSuite.

Google Workspace alternatives are mainly Mail Servers but may also be Team Collaboration Tools or WebMail Providers. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Google Workspace.

Google Workspace alternatives page was last updated

Google Workspace

136

Paid • Proprietary
Mail Server

Google Workspace (formerly Google Apps for Work / G Suite) is Google's encompassing selection of cloud apps for...

More about Google Workspace

CryptPad
Is this is a good alternative?
Yes
No
Freemium • Open Source
Office Suite
Word Processor
Spreadsheet App
Self-Hosted
Software as a Service (SaaS)
67 CryptPad alternatives
CryptPad is a private-by-design alternative to popular office tools and cloud services. All the content stored on CryptPad is encrypted before being sent, which means nobody can access your data unless you give them the keys.
- - CryptPad is the most popular SaaS & Self-Hosted alternative to Google Workspace.
- - CryptPad is the most popular Open Source & free alternative to Google Workspace.
Suggest and vote on features
CryptPad Features
1. End-to-End EncryptionCryptPad has E2E Encryption, for entire or parts of the app.
2. Real time collaborationMultiple users can work together in CryptPad simultaneously.
3. No registration requiredYou can use most of the features in CryptPad without registration.
4. Privacy focusedCryptPad is considered a privacy friendly alternative.
5. Kanban BoardCryptPad allows you to organize your workflow by moving cards with drag-and-drop functionality between multiple columns.
6. No TrackingCryptPad will not track you or use your personal data.
7. Support for MarkDownCryptPad supports MarkDown for document formatting.
8. WYSIWYG HTML EditorCryptPad allows you to make and preview changes to an application or website in real time, without needing to know code.
9. WYSIWYG SupportCryptPad integrates a WYSIWYG editor to edit the look and content of a document, page, or file.
Collaborative writing
Document sharing
Privacy
Direct file uploading
Encrypted Notes
Multiple languages
Nextcloud Hub
Is this is a good alternative?
Yes
No
Free • Open Source
Team Collaboration Tool
Calendar App
Document Manager
Self-Hosted
53 Nextcloud Hub alternatives
Nextcloud is the most deployed on-premises file share and collaboration platform. Access & collaborate across your devices. As fully on-premises solution, Nextcloud Hub provides the benefits of online collaboration without the compliance and security risks.
Suggest and vote on features
Nextcloud Hub Features
1. Cloud SyncSync your data (notes, documents, bookmarks, etc.) across your different devices and to the cloud.
2. Ad-freeNextcloud Hub doesn't contain any form of external advertising.
3. Real time collaborationMultiple users can work together in Nextcloud Hub simultaneously.
4. Extensible by Plugins/ExtensionsNextcloud Hub can be extended with add-ons, plugins and extensions.
Photo Gallery
Comments about Nextcloud Hub as a Alternative to Google Workspace
pros, cons and recent comments
Guest
It protects your privacy. Keep your data yours! Also, it doesn't just drop products at random times...
Positive comment•
0
Zimbra Collaboration Suite
Is this is a good alternative?
Yes
No
Freemium • Open Source
Mail Server
Calendar App
Team Collaboration Tool
Linux
Online
Self-Hosted
41 Zimbra Collaboration Suite alternatives
Zimbra Collaboration is an open, secure collaboration tool for email, calendaring, tasks and more. With the most innovative web application available today, Zimbra boosts the productivity of users on any desktop and dramatically reduces TCO compared to legacy platform vendors.
- - Zimbra Collaboration Suite is the most popular Linux alternative to Google Workspace.
Suggest and vote on features
Zimbra Collaboration Suite Features
1. Real time collaborationMultiple users can work together in Zimbra Collaboration Suite simultaneously.
ActiveSync
Active Directory integration
Opinions about Zimbra Collaboration Suite as a Alternative to Google Workspace
Most users think Zimbra Collaboration Suite is a great Google Workspace alternative.
Kolab Community
Is this is a good alternative?
Yes
No
Freemium • Open Source
Linux
Online
Self-Hosted
42 Kolab Community alternatives
Kolab is entirely Free and Open Source Software (a.k.a. FOSS), and uses Open Standards. We’ll get to why this is important to us, and hope that it is important to you thereafter.
Suggest and vote on features
Kolab Community Features
1. Real time collaborationMultiple users can work together in Kolab Community simultaneously.
CalDAV Support
WebDAV Support
IMAP Support
CardDAV Support
Add a screenshot

Opinions about Kolab Community as a Alternative to Google Workspace
Some users think Kolab Community is a great Google Workspace alternative, some don't.
WikiSuite
Is this is a good alternative?
Yes
No
Free • Open Source
Linux
Self-Hosted
8 WikiSuite alternatives
WikiSuite™ is especially suited to knowledge-centric organizations and offers most (80%+) of the data and information management features all organizations need.
Suggest and vote on features
WikiSuite Features
1. Real time collaborationMultiple users can work together in WikiSuite simultaneously.
Free courses
Add a screenshot
Kolab Now
Is this is a good alternative?
Yes
No
Paid • Open Source
Calendar App
Mail Server
Cloud Storage Service
Online
Software as a Service (SaaS)
DAVdroid
76 Kolab Now alternatives
Kolab Now provides a suite of intuitive apps in a user friendly environment to make your day to day online comms easier, smarter and most importantly; secure.
Suggest and vote on features
Kolab Now Features
1. Support for AliasesKolab Now supports aliases, so you can receive email without exposing your main email address
2. Real time collaborationMultiple users can work together in Kolab Now simultaneously.
3. Privacy focusedKolab Now is considered a privacy friendly alternative.
4. End-to-End EncryptionKolab Now has E2E Encryption, for entire or parts of the app.
CalDAV Support
WebDAV Sync
CardDAV Support
Kopano
Is this is a good alternative?
Yes
No
Paid • Open Source
Mail Server
Email Client
Mobile Device Management (MDM) Tool
Mac
Windows
Linux
Online
Android
iPhone
Android Tablet
Windows Phone
iPad
Self-Hosted
Microsoft Office Outlook
S/MIME
Software as a Service (SaaS)
24 Kopano alternatives
Kopano puts an email, video meetings, calendaring, and file sharing solution within one single interface.
Suggest and vote on features
Kopano Features
1. Real time collaborationMultiple users can work together in Kopano simultaneously.
On-premises software
Shared Calendar
CalDAV Support
IMAP Support
S/MIME Support
POP3 Support
OpenChange
Is this is a good alternative?
Yes
No
Free • Open Source
Mail Server
Linux
30 OpenChange alternatives
OpenChange aims to provide a portable Open Source implementation of Microsoft Exchange Server and Exchange protocols.
Suggest and vote on features
OpenChange Features
Exchange
Discontinued
Last release is from 2015
Add a screenshot