Element vs Zulip

The one question that decides this

Do you want Slack replaced by a communication system, or by a collaboration system with a stronger opinion about how teams should work? Element is positioned as “Secure decentralized communication built on Matrix” and lists both Slack and Signal as things it replaces. Zulip is narrower: “Open-source team chat that helps teams stay productive,” and lists Slack alone. That is the real split. Element is the more ambitious answer to ownership, decentralization, and secure communication; Zulip is the more focused answer to team chat that does not dissolve into an endless stream of messages.

What each one is actually trying to be

Element: Secure decentralized communication built on Matrix.

Element is trying to be the polished front end for Matrix-based communication. Its GitHub description calls it “A glossy Matrix collaboration client for the web,” which is a revealing choice of words. “Glossy” suggests an attempt to make a decentralized communications protocol approachable, rather than leaving it with the usual open-source interface tax. The project is not framed merely as a Slack clone. It also lists Signal among the products it replaces, which puts it in a broader category than workplace chat.

That broader ambition is useful if your concern is where communication lives and who controls it. Element’s tagline leads with security and decentralization, not productivity or message organization. That makes it a more philosophical choice than a straightforward SaaS substitution: you are choosing Matrix-oriented communication as part of the deal. The upside is a project whose identity is not built around copying Slack. The downside is that “more ambitious” can also mean more concepts to understand, more decisions to make, and less of the familiar one-vendor simplicity Slack buyers are trying to escape.

Element’s GitHub repository has 13370 stars, 2717 forks, and 3858 open issues. It uses the AGPL-3.0 license, and its last push was 2026-08-12. Those numbers show a visible, actively developed project with substantial public interest and a large issue queue. They do not tell you whether your team will prefer Matrix’s model, whether the user experience fits your organization, or whether 3858 open issues represent healthy triage, accumulated complexity, or some combination of all three.

Zulip: Open-source team chat that helps teams stay productive.

Zulip is trying to make team chat stay useful after the team gets large, busy, or both. Its GitHub description is direct: “Zulip server and web application. Open-source team chat that helps teams stay productive and focused.” Unlike Element, its stated purpose does not stretch into a general secure communications replacement. It lists Slack as the thing it replaces, and the pitch stays there.

That focus is the strongest argument for Zulip in this comparison. The project is not asking you to buy into a wider communications philosophy before you can evaluate it as workplace software. Its language is operational: team chat, productivity, focus. That does not guarantee a perfect Slack migration, but it gives the product a clearer job description. If the problem is that work conversations become noisy, fragmented, and difficult to follow, Zulip’s stated goal is pointed at the problem rather than adjacent to it.

Zulip’s GitHub repository has 25677 stars, 10055 forks, and 2049 open issues. It uses the Apache-2.0 license, and its last push was 2026-08-12. Compared with Element, Zulip has more stars and forks and fewer open issues in the supplied snapshot. That is a useful signal of project visibility and public participation, but it is not a product score. Stars do not measure whether your coworkers will adopt it, forks do not measure deployment quality, and open issue counts are not a clean ranking system. A repository with fewer open issues may simply have a different workflow, scope, or backlog culture.

Head-to-head: the metrics

On GitHub, Zulip leads on raw popularity: 25677 stars and 10055 forks, versus Element’s 13370 stars and 2717 forks. Zulip also has 2049 open issues, while Element has 3858 open issues. Both projects report the same last-push date: 2026-08-12, so the supplied freshness signal does not separate them. Both are active enough to have a clear ongoing development footprint in the data provided.

The licensing difference is more consequential than the star count. Element is licensed under AGPL-3.0. Zulip is licensed under Apache-2.0. Those licenses imply different expectations around modification and redistribution, especially when a modified version is offered over a network. This is not a footnote for companies that plan to customize the software, build services around it, or maintain internal forks. Legal review still belongs with your legal team, but the choice is visible before deployment.

The metrics tell us that both projects are real, maintained, and materially used by the open-source community. They also suggest that Zulip has the larger public footprint in this snapshot. They do not tell us which project has the better interface, which one handles your specific workflow, or how much operational work either deployment will require. They certainly do not prove that a larger star count translates into a better Slack replacement. GitHub is good at measuring GitHub behavior. It is not a substitute for talking to the people who will actually use the chat system.

Self-hosting

Element supports both self-host and official-cloud, with a deploy difficulty of 4 out of 5. That makes it the more demanding option on paper. The difficulty rating does not explain which part is hard, and no additional deployment details are provided here, so there is no basis for inventing a list of infrastructure requirements. The practical conclusion is still clear: choose Element self-hosting when you have a concrete reason to own the deployment and the team to take on a higher setup burden. If you do not, its official cloud option is the less operationally ambitious path.

Zulip also supports self-host and official-cloud, but its deploy difficulty is 3 out of 5. In the supplied data, that makes it the easier self-hosting bet. The difference is not enormous, and a one-point rating is not a migration plan, but it matters when the two products already offer the same broad hosting choices. Zulip’s combination of a 3 out of 5 deployment difficulty and Apache-2.0 licensing will be attractive to teams that want an open-source Slack replacement without making infrastructure ownership the central project.

Community signals

The Hacker News signals are sparse and uneven. Element has 1 Hacker News mention in the last 90 days, while Zulip has 0. Element’s supplied top story is “Element (Matrix chat app) suspended from the Google Play Store,” posted by redsolver on 2021-01-29, with 2009 points and 940 comments. That is a historically significant discussion, but it is not recent evidence of current sentiment; the supplied story date makes that obvious.

Zulip’s supplied top Hacker News story is “Dropbox has open-sourced Zulip,” posted by joeclef on 2015-09-25, with 755 points and 313 comments. Again, this is useful context for the project’s history, not a current product review. It shows that Zulip has had a notable open-source origin story, but an old launch discussion cannot tell you how the current application fits your team.

The Reddit data is even less useful for evaluating either product. Element’s top supplied Reddit post is “This scientist blends diverse chemical elements and reactions to generate mesmerizing visuals that materialize within a single drop of water,” from r/interestingasfuck, with 35702 upvotes and 331 comments. That is about chemical elements, not the software project. Zulip’s top supplied Reddit post is “I built a static analyzer for Django models — sidebar tree, ER diagram, MCP server (no DB, no boot),” from r/django, with 181 upvotes and 41 comments. It is adjacent to Zulip only in the sense that both involve software and the internet. Neither post should be treated as user feedback about the product. The honest read is that the supplied Reddit rankings are noise for this comparison.

What we'd do

Element wins for teams that specifically want secure, decentralized communication and are willing to accept a more demanding deployment profile in pursuit of that model. It is the better philosophical replacement for Slack, and potentially the more interesting one for organizations that also want something in the Signal-shaped part of the market. Zulip wins for teams that want an open-source team chat product with a narrower productivity-and-focus brief, a lower supplied deployment difficulty of 3 out of 5, a larger GitHub footprint, and the more permissive Apache-2.0 license. For a normal Slack migration, start with Zulip. Choose Element when decentralization is a requirement rather than a nice phrase in the tagline.