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Home/Categories/Communication & Collaboration/Converse.js
icon of Converse.js

Converse.js

Open source alternative to Slack, Microsoft Teams and Stream

  • 3.3K stars
  • MPL-2.0
  • Active this week
  • Last commit 1 day ago

Last verified Oct 21, 2026

An open-source, web-based XMPP chat client offering self-hosting, customization, and end-to-end encryption for secure messaging.

Visit websiteGitHub3.3K starsDeploy on Hostinger
image of Converse.js
TL;DR

Converse.js is a browser-based XMPP chat client that can run as a full chat app or embedded messaging interface. It replaces hosted team chat widgets and proprietary XMPP clients for organizations that want standards-based messaging they can customize. MPL-2.0 licensed.

Read the full breakdownHide the full breakdownWho it is for, how it works, trade-offs and the FAQ
who it's for

Who Converse.js is for#

Communities running XMPP

Use Converse.js when a community wants a modern web chat experience on top of an existing XMPP server.

Skip if:

Your community wants Discord-style voice rooms, discovery, and moderation tools out of the box.

Teams embedding private chat

Use Converse.js to add standards-based chat to an internal portal or product without maintaining a custom messaging UI.

Skip if:

You do not want to operate or integrate with XMPP infrastructure.

the problem

The problem it solves#

Chat systems can lock teams into a vendor's client, account model, and hosting path even when the underlying need is simple: private messaging that works with existing identity and communication infrastructure.

Organizations using XMPP need a modern web client that does not force users into a desktop app. Without that, teams either accept dated clients or rebuild chat UI from scratch.

how Converse.js solves it

How it solves it#

Web-based XMPP client

Runs in the browser and connects to XMPP servers, so teams can offer messaging through a web app without requiring every user to install a separate desktop client.

Embeddable chat interface

Converse.js can be used as a standalone app or embedded into another website, which helps communities and internal tools add chat without building a client from zero.

Privacy-focused messaging support

The project lists OMEMO among its topics, giving XMPP deployments a path toward end-to-end encrypted conversations when server and client configuration support it.

strengths · trade-offs

Strengths and trade-offs#

Strengths

  • Standards-based messagingXMPP support keeps the client aligned with an open messaging protocol instead of a single proprietary chat network. That matters for organizations that already run XMPP or need federation.
  • Flexible deployment shapeA browser client can serve public communities, private teams, or embedded product chat without asking users to adopt a new native app.

Trade-offs

  • -Requires XMPP infrastructureConverse.js is a client, not a complete hosted chat service. Teams need an XMPP server, identity decisions, and operational ownership before users can rely on it.
tech stack · detected from GitHub

What it's built on#

Languages
JavaScriptTypeScript
frequently asked

FAQ#

Does Converse.js include a chat server?

No. Converse.js is a web-based XMPP client, so it connects to an XMPP server that you run or choose separately.

Can Converse.js be embedded in another site?

Yes. Converse.js can run as a standalone web client or be embedded into another website or application.

Is Converse.js a Slack alternative?

Converse.js can replace some team chat needs when an organization wants XMPP-based messaging. Slack remains a broader hosted workspace with integrations, administration, and discovery features.

Looking for more

Other ways to replace Slack, Microsoft Teams and Stream#

Buzz

Featuredfor Slack

Self-hosted team chat where people and AI agents work together

36,174 GitHub starsVisit

Mattermost

#1 in the Slack guide

Closest drop-in Slack replacement for self-hosted teams

39,388 GitHub stars

Rocket.Chat

#2 in the Slack guide

Teams needing internal chat and customer omnichannel in one tool

46,298 GitHub stars

Zulip

#3 in the Slack guide

Async-first teams that need organized, low-noise conversations

26,085 GitHub stars
All 17 Slack alternatives8 open source Slack alternatives, ranked
by category

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Hostinger

Run Converse.js on your own server

Self-host Converse.js on a Hostinger VPS.

Deploy on Hostinger

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