Open Source Alternatives
Open Source Infrastructure Alternatives to Cloudflare
CDN, DDoS protection, DNS, and edge computing platform.
Cloudflare is a trademark of its respective owner.
Updated May 2026
What you gain
- ✓No bandwidth-based pricing for CDN and DDoS protection
- ✓Full control over your edge infrastructure without Cloudflare dependency
- ✓No feature gating between Free, Pro, and Enterprise tiers
- ✓Self-hosted reverse proxy with custom security rules
What you give up
- △No global Anycast network with 300+ edge locations for DDoS protection
- △No Workers for serverless compute at the edge
- △No managed WAF with automatic threat intelligence updates
- △No Cloudflare Tunnel for zero-trust application access
Switching Cost
Cloudflare's lock-in depends on which products you use. DNS-only users switch by changing nameservers (takes 5 minutes but up to 48 hours for propagation). Teams using Workers, R2, D1, or Tunnel are deeper in the ecosystem. The CDN and DDoS protection are the hardest to replace: Cloudflare's free tier offers protection that would cost thousands elsewhere. Teams using only CDN and DNS can migrate in a day. Teams with Workers at the edge, custom WAF rules, and Tunnel configurations should budget 1-2 weeks. The hidden cost is DDoS protection: without Cloudflare's Anycast network, you're exposed to attacks that Cloudflare absorbed silently.
We find the alternatives so you don't have to
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You can self-host a CDN, a WAF, and a DNS server. You cannot self-host a global anycast network with 300+ points of presence. That's the product. The tools below cover the software layer. They do not cover the part where a packet from Singapore hits a server 12ms away. If you need that, pay Cloudflare. If you're serving one region or sitting behind one already, the OSS stack is fine.
OSS covers
- ✓WAF rules
- ✓reverse proxy
- ✓tunneling
- ✓DNS server
- ✓zero-trust access
OSS does not cover
- △global anycast network with 300+ points of presence
- △DDoS scrubbing at terabit scale
- △Workers edge compute footprint
Building Blocks
Cloudflare is a platform. It bundles multiple capabilities into one subscription. These tools each cover one piece. Teams often assemble 2–3 of them instead of paying for the full suite.
firezone
75covers: zero-trust network access45%Enterprise-ready zero-trust access platform built on WireGuard®.
CrowdSec
81covers: threat detection35%Participative open-source security engine
SafeLine
76covers: WAF30%octelium
63covers: zero trust access30%A next-gen FOSS self-hosted unified zero trust secure access platform that can operate as a remote access VPN, a ZTNA platform, API/AI/MCP gateway, a PaaS, an ngrok-alternative and a homelab infrastructure.
AWS Cognito