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Squid

Caching and forwarding HTTP web proxy

Reverse Proxy & Gateways ★ 3.1k stars Medium setup GPL-2.0

Squid is a long-standing caching proxy for the web that supports HTTP, HTTPS, and FTP. It is used for forward proxying, access control, and bandwidth saving in many networks.

Official siteSource code

Key features

  • Forward HTTP caching proxy
  • Access control lists
  • Authentication support
  • Bandwidth optimization

Strengths

  • Released under the GPL-2.0 license
  • First-class Docker support for quick deployment
  • Active community (3.1k GitHub stars)
  • Written in C++

Is Squid secure?

No known vulnerabilities affect Squid's latest release (SQUID_7_7). OSV.dev lists 87 past advisories for the project; none of them applies to this release. No known vulnerabilities is not proof of security: it means none have been publicly catalogued.

  • Most recent fixed advisory CVE-2026-61642, published 2026-10-13 (1 day ago), fixed in 7.6

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

Squid replaces

Self-hosted Cloudflare Gateway alternatives

Health badge

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

SelfHostIndex: 90 · excellent

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

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

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