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Open Source Cloudflare Alternatives

The best open source alternative to Cloudflare is Haproxy. If that doesn't suit you, our users have ranked more than 25 alternatives to Cloudflare and four of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Cloudflare are FastNetMon, OneClickCDN and open-appsec.

Cloudflare alternatives are mainly CDNs but may also be DDoS Protection Systems or WAFs. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Cloudflare.
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  • FreemiumProprietary
  • CDN
  • Online

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  1. Haproxy icon


    • Linux
    • BSD
    17 alternatives to Haproxy 

    HAProxy is free, open source software that provides a high availability load balancer and proxy server for TCP and HTTP-based applications that spreads requests across multiple servers.

    Live demo
  2. FastNetMon

    • FreeOpen Source
    • Self-Hosted
    • Perl
    4 alternatives to FastNetMon 

    FastNetMon is a very fast DDoS analyzer with sflow/netflow/mirror support.

     Suggest and vote on features
    This app doesn't have any features at the moment.

  3. OneClickCDN icon


    • FreeOpen Source
    • CDN
    • Linux
    13 alternatives to OneClickCDN 

    A one-click shell script to set up a CDN node for your websites.

     Suggest and vote on features
    This app doesn't have any features at the moment.
  4. open-appsec icon


    • FreeOpen Source
    • WAF
    • Linux
    7 alternatives to open-appsec 

    open-appsec ( in an open-source initiative that builds on machine learning to provide pre-emptive web app & API threat protection against OWASP-Top-10 and zero-day attacks.

     Suggest and vote on features
    Machine Learning Engine
Showing 4 of 4 alternatives