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Lainchan

Image board engine forked from vichan

Forums & Community ★ 601 stars Medium setup Tinyboard

Lainchan is an image board software derived from vichan with additional features and theming, used to run anonymous discussion boards. It supports multiple boards, captchas, and moderation.

Official siteSource code

Key features

  • Anonymous image board engine
  • Theming and extra features
  • Captcha and moderation

Strengths

  • Released under the Tinyboard license
  • Written in JavaScript
  • Tiny footprint — runs in 256 MB RAM

Is Lainchan secure?

OSV.dev has no published security advisories for Lainchan'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.

Lainchan replaces

Self-hosted 4chan-style boards alternatives

Health badge

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

SelfHostIndex: 71 · good

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   :alt: SelfHostIndex health score for Lainchan
   :target: https://selfhostindex.com/app/lainchan/

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

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