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Open Source Team Communication Software (2026)
Last updated: April 2026
19 software options
Sponsored
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Cloud-based mobile and desktop messaging app for all devices
Read more about Telegram
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Enhance employee management with the only all-in-one app
Basic - from $29/month (billed annually) or $35/month (billed monthly) Advanced - from $49/month (billed annually) or $59/month (billed monthly) Expert - from $99/month (billed annually) or $119/month (billed monthly)
Read more about Connecteam
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Online work execution platform for businesses of all sizes
Choose the plan that works best for you and manage your projects, programs, and processes — all in one place. Plans start at $9.00/month when billed annually.
Read more about Smartsheet
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
A simple and secure way to connect your organization.
Standard: $0 USD (free) Advanced: $4 USD per person / month Enterprise: $8 USD per person / month Free for non-profits and educational institutions
Read more about Workplace from Meta
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Open source team chat software
Zulip is 100% free and open source, with no proprietary version. Self-host without paying a dime, or contact us to inquire about enterprise support options. We offer free Zulip Cloud hosting with up to 10,000 messages of search history. For unlimited history and other premium features, sign up for Zulip Cloud Standard for $6.67/user/month. Sponsorships and special education pricing are available. Zulip sponsors free Zulip Cloud Standard for hundreds of worthy organizations.
Read more about Zulip
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Open source workplace messaging for web, PCs & phones
Team edition: $0 free forever Enterprise E10: $3.25 user/month billed annually Enterprise E20: $8.50/user/month
Read more about Mattermost
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Cloud-based software for team collaboration & communication
Zoho Cliq offers three paid plans - Standard, Professional, and Enterprise. A free plan is also available.
Read more about Zoho Cliq
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
The Leading Enterprise Communication Hub
Rocket.Chat offers two pricing plans: Community: A free, self-managed plan designed for small teams. Enterprise: $7/user/month with a minimum of 25 users and $35/agent/month with a minimum of 5 agents.
Read more about Rocket.Chat
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
The most secure collaboration platform.
Read more about Wire
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Streamlining team management strategically.
Read more about Rolebase
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Messaging, voice, directory & analytics software for finance
Read more about Symphony Communication
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Secure and privacy-compliant business messenger
Read more about Threema Work
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Chat platform for streamlining business communication
Get 50 apps with Teams.cc at Just $14.99
Read more about Teams.cc
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
The Open Digital Workplace
Twake is Free for life! If you want more power and features, prices start from 4.19 Euros per user per month.
Read more about Twake
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Team communication software
Free Open Source Version; Professional Edition available
Read more about HumHub
Available in cloud-based and self-hosting versions * Basic plan up to 5 users, 10 GB of storage and 30h internal video calls a month: FREE * Standard plan up to 15 users, 30 GB of storage and 120h internal video calls a month: 57 EUR/month * Premium plan with unlimited users, 100 GB of storage and unlimited internal video calls: 129 EUR/month PrivMX Self-hosting plan: FREE Enterprise plan: customized offer including workspace branding, multi-server setups, integrations, dedicated onboarding and personal technical support. Available on demand.
Read more about PrivMX Fusion
