Free-tier chat platforms

Element

Element is a secure communications platform built on the Matrix open standard. It provides self-hosted and air-gapped messaging, voice and video calls, federation between separate organisations, and administrative controls for enterprise and public-sector deployments.

Gitter

Gitter is a chat and networking platform for developer communities. It runs on Matrix and connects to the gitter.im homeserver, so users can access rooms through the Gitter web app or any Matrix client they prefer.

Stream

Stream provides APIs and SDKs for building real-time chat messaging, video and audio calling, activity feeds, AI moderation, and Vision Agents. The platform includes shared infrastructure, prebuilt UI...

ConnectyCube

ConnectyCube provides chat and calling SDKs for developers building messaging, voice, and video features into applications. The platform includes SDKs and APIs for Flutter, React Native, Web, Cordova,...

Chanty

Chanty is a team communication and collaboration platform with chat, voice and video calls, task management, file sharing, and integrations. It supports unlimited public and private chats, unlimited a...

Stoat

Stoat is an open-source group chat application for friends and communities. It provides servers, channels, voice chat, file sharing, markdown support, role-based permissions, moderation tools, bots, a...

Braid

Braid is a group collaboration and chat application that organizes discussions into separate conversations instead of a single shared chatroom. It supports multiple chats, tags, mentions, search, priv...