Cost / License
- Freemium
- Proprietary
Application types
Platforms
- Online
- Android
- iPhone
- Android Tablet
- iPad
- Software as a Service (SaaS)








Nerimity is an open-source, community-first chat platform built to deliver an elegant, powerful, and feature-rich experience.
![Profile Interface [PC - 2025]](https://d4.alternativeto.net/od-oQxPBmbGgMb1DDF56LetNIIFfN-sw15fMkRUB3mU/rs:fill:309:197:1/g:no:0:0/YWJzOi8vZGlzdC9zL25lcmltaXR5Xzk5MzIyMl9mdWxsLnBuZw.png)
![Messages View [PC - 2025]](https://d4.alternativeto.net/onkc5zjoyV0rmmltjDuVgkJz6n_BWgqQPeuSyoFbHAs/rs:fill:309:197:1/g:no:0:0/YWJzOi8vZGlzdC9zL25lcmltaXR5XzI4MTQxOF9mdWxsLnBuZw.png)
![Server Discovery [PC - 2025]](https://d4.alternativeto.net/DoId0spu4HU_371pFn-leEiedu6M4bu453CRrSZAD4s/rs:fill:309:197:1/g:no:0:0/YWJzOi8vZGlzdC9zL25lcmltaXR5XzI4MjUwOF9mdWxsLnBuZw.png)
![Server Settings [PC - 2025]](https://d4.alternativeto.net/K6RpZpz2k_EvPbvMB3X-9Tq3JQEARLiCsjqmrr2hps0/rs:fill:309:197:1/g:no:0:0/YWJzOi8vZGlzdC9zL25lcmltaXR5XzYyODAyOF9mdWxsLnBuZw.png)
The Steam Chat app includes many key features of the desktop Steam client chat, including:








Telegram Desktop fork with Material Design and other improvements, which is based on the Telegram API and the MTProto secure protocol.


Feature rich WhatsApp web client based on Qt WebEngine for Linux Desktop
Whatsie Key features
Light and Dark Themes with automatic switching Customized Notifications & Native Notifications Keyboard Shortcuts BuiltIn download manager Mute Audio, Disable N.

StrafeChat is a web application focused on no censorship. We believe that people with any belief, opinion, or view should be able to communicate with each other freely.

Twist is a team communication service that emphasizes conversation organization and work relevance. It does so in a way that promotes asynchronous communication for more thoughtful discourse.




Fully open source instant messaging server and clients. No proprietary components or non-free dependencies. Backend in pure Go (GPL 3.0), with a command-line administration tool in python + gRPC. Clients for Android, iPhone, and Web - ReactJS (all licensed under Apache 2.0).




Quaternion is a cross-platform Qt5-based desktop IM client for Matrix, a reference desktop application using libQMatrixClient. Source code, issue tracker, roadmap etc. can be found at GitHub. Releases (with links to cross-platform source code archives, as well as binaries for...









White Noise aims to be the most secure private chat app on Nostr, with a focus on privacy and security. Under the hood, it uses the Messaging Layer Security (MLS) protocol to manage group communications in a highly secure way.

Group messaging platform owned by Microsoft. It's absolutely free, whether you're talking to a group of friends, or texting with one person. Best of all, it works on nearly every phone, via push or SMS. With GroupMe, it's easy to reach anyone, anytime, anywhere.




Customizable digital office lets remote and hybrid teams collaborate in real time with video calls, presence indicators, chat, file sharing, and calendar integration.




Grow a community, connect with your friends, or whatever you're capable of with Adapt, a lightweight and customizable messaging platform which favors your privacy.

Conduit is a simple, fast and reliable chat server powered by Matrix. Conduit is an alternative to Synapse and tries to be lightweight and easy to install, but it is still in development.

Established in 2002, 321Chat is one of the webs longest running chat sites. The chat rooms work on all mobile devices and are packed with features everyone can use. Select a chat room topic and click to start chatting.


This Android app allows you to synchronize your SMS messages to a remote Nextcloud instance where you can read and backup them. It also allows you to restore your SMS messages to your Android phone.

Mostlymatter is a fork of Mattermost meant to remove the users and messages limits. Mattermost is an open source platform for secure collaboration across the entire software development lifecycle.

Adobe Connect is a software solution for creating presentations, online training materials, web conferencing, learning modules, webinars, and desktop sharing. Its structure is based on 'pods', organized meeting rooms each with a specific function like chat, whiteboard...




kChat is a secure instant messaging for businesses, which makes it possible to discuss matters live and organise projects.

Zoho Cliq simplifies your team communication with organized conversations, information that's easy to find and by connecting to the tools you love. Transform ideas into reality with your team. With channels, your team communication is visible, transparent and efficient.




Samepage facilitates communication, project management, meetings, online collaboration and more by combining chat, video calling, screen sharing, task management, file sharing, and real-time document collaboration in a single collaborative workspace.




Instant messaging and group collaboration tool with thread-based channels, real-time document editing, Google Workspace integration, search, and enterprise security.



