Who SpacebarChat is for#
Communities needing chat ownership
Use SpacebarChat when a community wants Discord-style channels and bot patterns while operating its own server infrastructure.
Skip if:
Your community needs the full hosted Discord ecosystem, discovery, mobile polish, and marketplace integrations immediately.
Developers building Discord-compatible experiments
Use SpacebarChat to prototype chat features, bot behavior, or server-side extensions around familiar Discord-like APIs.
Skip if:
You need a stable enterprise team chat suite with support contracts and mature compliance controls.
The problem it solves#
Communities built on proprietary chat services inherit that service's moderation tools, product direction, API limits, and account system. That is convenient until a community needs infrastructure control, custom behavior, or a data model that the hosted service will not expose.
Rebuilding a real-time chat backend from scratch is a large project. WebSocket gateways, file delivery, voice support, bot compatibility, and database models all need to work together before users see a familiar experience.
How it solves it#
Discord backend reimplementation
Implements a Discord-like backend with HTTP API, WebSocket gateway, CDN, WebRTC, utilities, and database models in the repository.
Bot and client compatibility goal
The project aims to remain compatible with existing bots, applications, and clients where possible, reducing the work needed to adapt Discord-style tooling.
Self-hosted chat infrastructure
Gives operators a path to run chat infrastructure under their own control instead of depending entirely on a hosted community service.
Strengths and trade-offs#
Strengths
- Familiar community-chat modelSpacebarChat follows Discord conventions, which helps communities and bot developers understand the core server, channel, and gateway model.
- Full backend scopeThe server repository covers multiple backend pieces rather than only a chat UI. That matters for teams evaluating whether they can own the whole communication stack.
Trade-offs
- -Compatibility is not the same as DiscordSpacebarChat is a reimplementation, not Discord itself. Operators should expect missing edge cases, migration work, and ongoing maintenance before using it for a large public community.
What it's built on#
- Languages
- C#JavaScriptTypeScript
- Frameworks
- Express
- Databases
- PostgreSQL
- Messaging
- RabbitMQ
FAQ#
What is SpacebarChat?
SpacebarChat is a Discord backend reimplementation and extension. Its server repository includes API, gateway, CDN, WebRTC, utility, and database components.
Is SpacebarChat self-hosted?
Yes. SpacebarChat is designed for operators who want to run their own Discord-like chat infrastructure.
Does SpacebarChat replace Discord directly?
SpacebarChat can replace some Discord-style community chat needs, but it is not a drop-in copy of the hosted Discord product. Large communities should test compatibility and operations carefully.
Similar open-source tools#
Prose
Decentralized open source workplace with chat and docs
Adapt
Lightweight self-hosted messaging platform for teams
Rocket.Chat
Self-hosted team chat with voice, video, and omnichannel support
Converse.js
Self-hosted web-based XMPP chat client for any server
Revolt
Self-hosted open source Discord alternative with servers
Matrix
Open protocol for secure, decentralized messaging and VoIP