🛡️ Free Firewall & DDoS Protection Tools 2026
7 firewall & ddos protection tools you can use for free — no credit card required. Includes fully free tools and freemium tiers with generous limits.
- 1
Hetzner's DDoS Protection filters volumetric and application-layer attacks at network edge. Designed for cloud users and hosting providers managing large traffic volumes.
Best for: Organizations running high-traffic applications on Hetzner infrastructure who need native, straightforward DDoS mitigation without multi-vendor complexity.
- 2
Gcore is a European CDN and cloud provider with 150+ PoPs including strong coverage in Russia, CIS, Middle East, and Africa. CDN, cloud compute, streaming, and DDoS protection.
Best for: Applications needing CDN coverage in CIS, Eastern Europe, Middle East, and Africa beyond Cloudflare's footprint
- 3
Cloudflare provides distributed content delivery, DDoS mitigation, and R2 object storage. Designed for developers and enterprises needing reliable infrastructure with minimal latency.
Best for: Teams building web applications requiring global distribution, DDoS protection, and cost-efficient object storage without egress fees.
- 4
ModSecurity is the leading open source WAF. Runs as a module for Nginx (via libmodsecurity) and Apache. OWASP Core Rule Set included. Self-hosted on any server.
Best for: Security engineers who want a free self-hosted WAF they fully control on their Nginx or Apache servers
- 5
StackPath provides CDN, WAF, DDoS protection, and edge compute with 50+ PoPs globally. Simple pricing model and strong integration with serverless edge workers.
Best for: Developers wanting CDN, WAF, and edge compute in one platform at predictable pricing
- 6
Bunny Shield is the DDoS protection layer integrated into Bunny.net's CDN. Layer 3/4/7 DDoS mitigation across Bunny's global network. Automatic attack detection.
Best for: Bunny CDN users who want DDoS protection included in their existing CDN plan
- 7
Cloudflare's Web Application Firewall protects against OWASP Top 10, zero-day vulnerabilities, and DDoS. 300+ global PoPs absorb attacks. Free plan blocks basic threats; Pro adds OWASP managed rules.
Best for: Every website — Cloudflare WAF is the standard baseline for web application firewall protection
What counts as free?
Every tool on this page has either a fully free plan or a freemium tier that doesn't require a paid subscription to start. We list features, limits, and upgrade paths on each tool's detail page so you know exactly what the free plan includes.
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