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Flying Squid

JavaScript Minecraft server implementation built on Node.js

Game Servers ★ 610 stars Medium setup MIT

Flying Squid is an open-source Minecraft server written in JavaScript on top of the PrismarineJS ecosystem. It is designed to be highly extensible and embeddable, useful for custom game modes and experimentation.

Official siteSource code

Key features

  • JavaScript Minecraft server
  • Highly extensible
  • PrismarineJS ecosystem
  • Custom game mode friendly

Strengths

  • Released under the MIT license
  • Written in JavaScript
  • Lightweight — runs in 512 MB RAM

Is Flying Squid secure?

OSV.dev has no published security advisories for Flying Squid's repository. No known vulnerabilities is not proof of security: it means none have been publicly catalogued.

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

Flying Squid replaces

Self-hosted vanilla Minecraft server alternatives

Health badge

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

SelfHostIndex: 77 · good

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<a href="https://selfhostindex.com/app/flying-squid/"><img src="https://selfhostindex.com/badge/flying-squid.svg" alt="SelfHostIndex health score for Flying Squid"></a>
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.. image:: https://selfhostindex.com/badge/flying-squid.svg
   :alt: SelfHostIndex health score for Flying Squid
   :target: https://selfhostindex.com/app/flying-squid/

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

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