The best open source alternative to Cloudflare is Anubis. It's not free, so if you're looking for a free alternative, you could try Anubis or Duck DNS. If that doesn't suit you, our users have ranked more than 50 alternatives to Cloudflare and 13 is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Cloudflare are Haproxy, NetGoat, FastNetMon and open-appsec.
Applies sha256 proof-of-work challenges to incoming HTTP requests, targeting AI crawlers, bots that ignore robots.txt, and automated scrapers, protecting server resources and preventing unwanted search engine indexing for privacy-focused sites.
Canada
United Kingdom
BunkerWeb is a next-generation and open-source Web Application Firewall (WAF).
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.
A Cloudflare alternative for local and cloud use, can be used ontop of cloudflare for cloudflares paid features, but for free!.
open-appsec (openappsec.io) 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.
SafeLine is a docker-based, easy to use, self-hosted free web application firewall (WAF) that protects web apps by filtering and monitoring HTTP traffic between a web application and the Internet.
China
HaGeZi DNS offers free, non-commercial public DNS resolvers designed and operated by a private individual for the European community. It provides robust DNS-based blocking of ads, trackers, scam, phishing, fake, and malware domains - helping users achieve greater privacy and...
Coraza is an open source, enterprise-grade, high performance Web Application Firewall (WAF) ready to protect your beloved applications. It is written in Go, supports ModSecurity SecLang rulesets and is 100% compatible with the OWASP Core Rule Set v4.
United States
Purge Cloudflare cache without opening a browser. Native apps for developers and agencies on iPhone, iPad, Android and Windows. Multi-account, selective or total purges, favorites. Three taps. Free. Private.
Spain
EU
France
Germany
