Rocket.Chat alternatives (2026)

Rocket.Chat describes itself as "built for organizations where sovereignty, compliance, and mission continuity are non-negotiable" (rocket.chat/pricing). Its plans are Starter, a free self-managed workspace for evaluation, small businesses and non-profits, and Commercial, Government and Defense through sales, with on-prem, private cloud, isolated VPC and air-gapped deployments.

Teams usually compare when they want published prices, a different threading model, federation on an open standard, or when they no longer need to run their own servers.

Best for: self-hosted, DevOps and regulated teams.

Where it wins: self-hosted, air-gapped and compliance-heavy deployments, Playbooks for incident workflows on Enterprise, bring-your-own LLMs, and on Enterprise, agents with MCP and tool controls and calls with live transcription.

Watch-outs: there is no free plan on its pricing page (a 1-hour trial environment instead), and every paid plan is through sales.

Price: Professional, Enterprise and Enterprise Advanced are all through sales, and no free plan is listed (mattermost.com/pricing).

See Mattermost alternatives.

Best for: teams that want open source with published prices.

Where it wins: it is 100% open source and free to self-host, and every chat in a channel has its own topic, which keeps busy channels readable. Many open-source projects, research groups and small nonprofits qualify for a free Cloud Standard plan.

Watch-outs: the topic model takes getting used to, Cloud Free keeps 10,000 messages of search history, and bots work through the API.

Price: Cloud Free keeps 10,000 messages of search history; Cloud Standard is $6.67 per user per month billed annually ($8 monthly). Self-hosting is free, with paid support plans (zulip.com/plans).

See Zulip alternatives.

Best for: teams that want federation on an open standard.

Where it wins: it is built on the Matrix open standard, so you can self-host the free Community edition and federate with other Matrix servers. Sovereign deployments can run without internet connectivity.

Watch-outs: Enterprise is priced per seat without published rates, and bots and integrations come through Matrix rather than as agent teammates.

Price: Community is free and self-hosted; Enterprise is priced per seat and Sovereign per deployment, without published rates (element.io/pricing).

Best for: teams that don't need to self-host after all.

Where it wins: the default most hires know, 2,600+ apps, Slack Connect for shared channels, and no servers to run.

Watch-outs: it can't be self-hosted, the free plan shows 90 days of history, and agents arrive as apps and assistants rather than members.

Price: Free (90 days of history, 1:1 huddles); Pro $7.25 per user per month billed annually ($8.75 monthly); Business+ $15 billed annually (slack.com/pricing).

Best for: regulated companies already on Microsoft 365.

Where it wins: Microsoft's governance, compliance and identity tools (Purview and Entra), with meetings, calling and Microsoft 365 apps alongside chat.

Watch-outs: it is Microsoft-hosted rather than self-managed, and built around meetings and the Microsoft 365 suite.

Price: Teams Essentials is $4.00 per user per month, paid yearly (Teams Essentials).

Best for: teams that don't need to self-host and already hand work to AI agents.

Where it wins: agents are workspace members with their own identity and inbox, and only see the chats they are in (FAQ). Bring Claude, Codex, Grok Bot or any MCP agent as an external agent, or use an Ando agent (bring your own agent). Jams are audio-first calls you start from any channel, DM or group DM; video and screen sharing work on the web and desktop apps (Jams). Owners can require SSO or other sign-in methods, and Ando has a SOC 2 Type II report (Security).

Watch-outs: if you need on-prem, air-gapped or sovereign deployment, Rocket.Chat or Mattermost beats Ando: it can't be self-hosted. It isn't free or open source, and access is through a waitlist.

Price: per human seat; rates aren't published yet (pricing philosophy). Starting a new company and moving off iMessage? We'll onboard you in under 24 hours (FAQ).

• You need air-gapped or sovereign deployment and Rocket.Chat works → stay on Rocket.Chat.
• You want another self-hosted option built for compliance → Mattermost.
• You want open source with published prices → Zulip.
• You want federation on an open standard → Element.
• You don't need to self-host → Slack, or Microsoft Teams on Microsoft 365.
• You don't need to self-host and agents already do real work on your team → Ando. Starting a new company and moving off iMessage? We'll onboard you in under 24 hours (FAQ).