Data as of Oct 18, 2026Based on 289 AI responses
Reviewed by Dimitry Apollonsky
AI summary
Zulip and Mattermost run neck and neck, with Zulip recommended for topic-based threading and Mattermost for an open-source, self-hosted Slack alternative. Slack serves as the usual answer when buyers prioritize asynchronous communication or broad platform management.
Rank and Mentioned in · since Jul 6
| # | Brand | Recommended for | Mentioned in |
|---|---|---|---|
| 1 | secure, self-hosted environments needing a familiar Slack-like layout | secure, self-hosted environments needing a familiar Slack-like layout | 61% |
| 2 | open-source messaging structured around unique, topic-based streams | open-source messaging structured around unique, topic-based streams | 58% |
| 3 | high-security deployments requiring open-source versatility and extensive integrations | high-security deployments requiring open-source versatility and extensive integrations | 46% |
| 4 | structured enterprise collaboration tightly integrated with Microsoft 365 | structured enterprise collaboration tightly integrated with Microsoft 365 | 43% |
| 5 | asynchronous collaboration, threaded discussions, and broad software integrations | asynchronous collaboration, threaded discussions, and broad software integrations | 35% |
| 6 | decentralized, secure messaging setups focused on user data control | decentralized, secure messaging setups focused on user data control | 28% |
| 7 | daily team messaging integrated directly into Google Workspace workflows | daily team messaging integrated directly into Google Workspace workflows | 27% |
| 8 | end-to-end encrypted chat operating on the decentralized Matrix protocol | end-to-end encrypted chat operating on the decentralized Matrix protocol | 26% |
| 9 | end-to-end encrypted chat operating on the decentralized Matrix protocol | end-to-end encrypted chat operating on the decentralized Matrix protocol | 26% |
| 10 | asynchronous collaboration, threaded discussions, and broad software integrations | asynchronous collaboration, threaded discussions, and broad software integrations | 24% |
| 11 | 23% | ||
| 12 | 18% | ||
| 13 | 11% | ||
| 14 | 10% | ||
| 15 | 9% |
What’s changing · since July
Since July, Matrixrising has gained presence across the market. Zuliprising has become one of the three most named choices for open-source data ownership, and Mattermostrising is now named regularly for asynchronous threaded chat.
Weeks of Jul 27 – Sep 6, 2026 · Since Jul 5
More topics
Widest split: Zulip, 71% on ChatGPT Search and 55% on Google AI Mode.
| Brand | ChatGPT Search | Google AI Mode | Comparison |
|---|---|---|---|
| Mattermost | 66% | 59% | |
| Zulip | 71% | 55% | |
| Rocket.Chat | 53% | 46% | |
| Microsoft Teams | 38% | 34% | |
| Slack | 25% | 28% | |
| Matrix | 35% | 28% | |
| Google Chat | 17% | 21% | |
| Element | 25% | 34% | |
| Element | 28% | 27% | |
| Slack | 28% | 26% |
41% of citations point at the ranked brands’ own sites. youtube.com, reddit.com, trueconf.com are the most-cited sites outside the ranked brands’ own domains.
Market map
Mentioned in · since Jul 6
Leading brands by topic
I need to find a team chat solution that isn't cloud-based and allows for internal hosting. What should I look at?
best team chat software for remote teams
best team chat software for small businesses
how do I choose a management platform?
My team needs a central place to communicate asynchronously. What's the best team chat app that prioritizes threaded conversations?
My team needs a collaboration platform that isn't as noisy or distracting as Slack. What are some good alternatives?
Can you recommend a team communication tool that prioritizes focus and minimizes the constant interruptions we get with Slack?
I'm looking for a collaboration hub for my team that feels less distracting than Slack.
We are looking for an open-source team chat platform to handle our internal communications. Do you have any recommendations?
We are looking for an open-source team chat application for our internal communication. Can you recommend some options?