Work · alternatives · 2026

24 alternatives to Zulip

Open source team chat with first class threading.

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Zulip launched in 2017; newer entries below may have overtaken it.

1. 1
   Zulip 4.0▲121

   Open source team chat with powerful threading

   2021 · zulip.com · its alternatives →

2. 2
   Zulip▲20

   Powerful open source group chat

   2015 · zulip.com · its alternatives →

3. 3
   Taskade 3.0▲645

   All-in-one collaboration. Chat, organize, get things done!

   2020 · taskade.com · its alternatives →

4. 4
   Flow▲438

   Beautiful team chat with tightly integrated task management

   2015 · its alternatives →

5. 5
   Spot 2.0▲287

   The next-gen communication app for teams

   2022 · spotvirtual.com · its alternatives →

6. 6
   Twist 1.0▲413

   More productive messaging for teams

   2017 · apps.apple.com · its alternatives →

7. 7
   Hangouts Chat by Google▲546

   Intelligent team communication

   2018 · accounts.google.com · its alternatives →

8. 8
   Zula ▲99

   One-tap team conference calling

   2014 · zulaapp.com · its alternatives →

9. 9
   Hangouts Chat by Google (Early Access)▲450

   Bring your team together

   2017 · blog.google · its alternatives →

10. 10
    Granola 2.0▲381

    Introducing recipes, in the all-new Granola Chat

    2025 · granola.ai · its alternatives →

11. 11
    Jamm▲255

    Video chat for remote teams

    2020 · ringcentral.com · its alternatives →

12. 12
    Stride▲527

    Atlassian's new group messaging and video meeting platform

    2017 · its alternatives →

13. 13
    Noor Beta▲487

    Time to replace Slack

    2023 · noor.to · its alternatives →

14. 14
    Mantle Chat▲298

    Collaboration platform where teams work with AI together

    May 2026 · mantle.chat · its alternatives →

15. 15LT
    Linen.team – A lightweight, thread-first Slack alternative▲124

    Hi HN! I'm Kam, the founder and one of the authors of Linen. Today, we are launching Linen.team (https://linen.team/), a lightweight threaded messaging app for your team. Modern workplace messaging apps (like Slack) are based on IRC, which is great for small groups, but as it scales, breaks down quickly: you either get overwhelmed by notifications or you have to turn them all off. Most chat apps have threads tacked on but aren't built from the ground up with this design in mind. We wanted to create a thread-first experience where you can organize and prioritize conversations…

    2024 · its alternatives →

16. 16
    Zapier for Teams▲289

    Automate everything, together.

    2017 · zapier.com · its alternatives →

17. 17
    Quill▲414

    Messaging to make your team better

    2021 · its alternatives →

18. 18
    Glip by RingCentral▲73

    Free video meetings with built-in team messaging.

    2020 · ringcentral.com · its alternatives →

19. 19
    Werk▲364

    Async first, all in one collaboration for remote teams

    2022 · its alternatives →

20. 20
    Glip▲105

    Real-Time Team Productivity

    2014 · ringcentral.com · its alternatives →

21. 21
    TeamSpirit▲119

    Stop rambling on video calls and end meetings on time

    2020 · salespot.io · its alternatives →

22. 22
    Zapmail▲172

    Slack as an email service

    2023 · zapmail.app · its alternatives →

23. 23
    Twist 2.0▲291

    For teams burnt out by real-time chat, work async, not ASAP

    2021 · twist.com · its alternatives →

24. 24MC
    Mogo Chat – open-source team chat app written in Elixir and Ember.js▲140

    2014 · getmogochat.com · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →