What is the best open-source alternative to Microsoft Teams?

The best open-source alternative to Microsoft Teams is Nextcloud Talk, which features Integrated storage calls and is optimized for Self-hosted companies. Other notable options include Jitsi Meet, Zulip.

Is there a free self-hosted alternative to Microsoft Teams?

Yes! Self-hosted options like Nextcloud Talk and Jitsi Meet and Zulip are completely free to run on your own servers and bypass commercial licensing fees.

Remote Work & Education

Best Microsoft Teams Alternatives

Teams is heavily integrated into Office 365, but it is resource-intensive and has a complex interface for external collaborators.

About Microsoft Teams

Pricing: $4.00/user/monthOfficial Website

Direct Feature Comparison

Software Name	Free Plan	Open Source	Self Hosted	Key Feature	Best For	Link
Target MT Microsoft Teams	✓	✗	✗	Mainstream Suite	Universal Standard	Visit
NT Nextcloud Talk	✓	✓	✓	Integrated storage calls	Self-hosted companies	Visit
JM Jitsi Meet	✓	✓	✓	No login browser rooms	Quick browser video calls	Visit
ZU Zulip	✓	✓	✓	Asynchronous threading	Remote tech teams	Visit

Top 5 Alternatives Reviewed

Structured overview of the strongest replacement choices

Nextcloud Talk

Free

#01

Self-hosted video calls, chat, and screen sharing integrated inside your own Nextcloud cloud node.

Best For: Self-hosted companiesKey Feature: Integrated storage calls

Free PlanYes

Open SourceYes

Self HostedYes

Visit Website

Jitsi Meet

Free

#02

100% open-source, encrypted browser video calls requiring no accounts or app installations.

Best For: Quick browser video callsKey Feature: No login browser rooms

Free PlanYes

Open SourceYes

Self HostedYes

Visit Website

Zulip

Free / $6.67 cloud

#03

Thread-based asynchronous group messaging tool, optimizing long-term search index lists.

Best For: Remote tech teamsKey Feature: Asynchronous threading

Free PlanYes

Open SourceYes

Self HostedYes

Visit Website

🔓 Open-Source Options

Nextcloud Talk: Open code base built for Self-hosted companies. Features integrated storage calls.
Jitsi Meet: Open code base built for Quick browser video calls. Features no login browser rooms.
Zulip: Open code base built for Remote tech teams. Features asynchronous threading.

🖥️ Self-Hosted Options

Nextcloud Talk: Run locally or on custom cloud VMs. Ideal for self-hosted companies.
Jitsi Meet: Run locally or on custom cloud VMs. Ideal for quick browser video calls.
Zulip: Run locally or on custom cloud VMs. Ideal for remote tech teams.

💡 Final Recommendation

For collaborative remote teams, **Zulip** reduces meeting overhead. For instant browser video calls, **Jitsi Meet** is recommended.