SHSelfHostIndex

Spacebar

Self-hostable, open-source Discord-compatible chat backend

Chat & Communication ★ 2.2k stars Hard setup AGPL-3.0

Spacebar is a free, open-source, self-hostable chat platform that is compatible with the Discord client and API. It lets communities run their own Discord-like server infrastructure.

Official siteSource code

Key features

  • Discord-API compatible
  • Works with existing Discord clients
  • Self-hosted communities
  • Voice and text channels

Pros & cons

Strengths

  • Released under the AGPL-3.0 license
  • First-class Docker support for quick deployment
  • Active community (2.2k GitHub stars)
  • Written in TypeScript

Trade-offs

  • Still in heavy development
  • Feature gaps versus Discord

Is Spacebar secure?

OSV.dev lists 3 published advisories for Spacebar. It doesn't publish GitHub releases we can match, so we can't say which of them apply to the current version. No known vulnerabilities is not proof of security: it means none have been publicly catalogued.

  • Most recent fixed advisory CVE-2026-69114, published 2026-08-10 (65 days ago)

Source: OSV.dev, checked 2026-10-14. How this is measured.

Spacebar replaces

Self-hosted Discord alternatives

Health badge

Maintain Spacebar? Add its health score to your README. The badge links back to this page.

SelfHostIndex: 83 · excellent

Markdown
[![SelfHostIndex health score for Spacebar](https://selfhostindex.com/badge/spacebar-chat.svg)](https://selfhostindex.com/app/spacebar-chat/)
HTML
<a href="https://selfhostindex.com/app/spacebar-chat/"><img src="https://selfhostindex.com/badge/spacebar-chat.svg" alt="SelfHostIndex health score for Spacebar"></a>
reStructuredText
.. image:: https://selfhostindex.com/badge/spacebar-chat.svg
   :alt: SelfHostIndex health score for Spacebar
   :target: https://selfhostindex.com/app/spacebar-chat/

The score is recomputed on every nightly rebuild from public repository data — see how it is calculated.

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