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COPS

Calibre OPDS and HTML PHP server

E-books & Media Library ★ 135 stars Easy setup GPL-2.0

COPS is a lightweight Calibre OPDS and HTML PHP server that exposes a Calibre library without needing Calibre running. It targets users wanting a minimal way to share their library. It is deployed via Docker or a PHP stack.

Official siteSource code

Key features

  • OPDS and HTML catalog
  • Reads Calibre metadata database
  • Very lightweight
  • No Calibre process needed

Pros & cons

Strengths

  • Extremely lightweight
  • Easy to host
  • Good OPDS support

Trade-offs

  • Read-only catalog
  • Basic interface

Is COPS secure?

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

COPS replaces

Self-hosted Kindle alternatives

Health badge

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SelfHostIndex: 73 · good

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   :alt: SelfHostIndex health score for COPS
   :target: https://selfhostindex.com/app/cops/

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Compare COPS

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