Open alternatives3
Open-source apps that replace Discord and TeamSpeak
Mumble is a free voice-chat program for talking with others in real time, with separate channels for groups. It is for people who want to run their own voice server or join one, and it has no video.
Spacebar is a free, self-hostable chat, voice and video platform that works with Discord-compatible apps and bots. It is for people and groups who want to run their own chat server instead of relying on a company's service.
Element is a chat app for private messages and group chats over the Matrix network, used in a web browser or as a desktop app. It is for people and teams who want chat they can host and control, with phone apps offered as separate Element X projects.
What's missing
What people still miss here, and wish existed. Upvote what matters to you.
Before you build
Planning something for community chat & voice? See what exists first, so you can reuse parts or explain what's different. Paste this into any AI assistant:
Fix the list itself
A project or closed app missing from this list, or a mistake on it? These open a short form on GitHub, and a mod reviews it. To say what a project can't do, use What's missing.
About this page
Replaces fully means it does the main job of these apps; Replaces partly means it covers some of it.
Licenses: every project here uses an open-source license (what each one means). Open core means some parts are paid or under another license.
GitHub stars are shown for reference. They measure popularity, not whether it replaces anything.
Verified means r/TrueOpenSource mods checked it: open-source license, maintained, and it really does the job.
How Open Source Everything works