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Head-to-head · Web Application Firewall Software

AWS WAF vs open-appsec

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score AWS WAF #2 in Web Application Firewall Software 9.2/10 Paid ✓ 4 of 4 features Visit AWS WAF
open-appsec #5 in Web Application Firewall Software 8.9/10 Open source ✓ 3 of 4 features Visit open-appsec

AWS WAF leads on 0 checks, open-appsec on 0, and 5 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreAWS WAF · 9.2/10
  • Most featuresAWS WAF · 4 of 4

AWS WAF scores higher on our rubric for web application firewall software: 9.2 against 8.9 out of 10; our editors rank them #2 and #5.

AWS WAF is the better fit for AWS-native applications needing flexible pricing. open-appsec is the better fit for cloud-native teams wanting open-source ML protection.

  • AWS WAF fits best

    AWS-native applications needing flexible pricing

  • open-appsec fits best

    Cloud-native teams wanting open-source ML protection

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature AWS WAF 9.2/10 Visit ↗ open-appsec 8.9/10 Visit ↗
At a glance
Editor score 9.2 8.9
Ranking #2 in Web Application Firewall Software #5 in Web Application Firewall Software
Best for AWS-native applications needing flexible pricing Cloud-native teams wanting open-source ML protection
Pricing model Paid Free
Starting price $1/unit/mo Open source
Free plan — Not checked yet
Free trial — —
Deployment Cloud, Browser extension Cloud, Self-hosted
Platforms Web Web, Linux
Support Docs Docs
Integrations 9 integrations 12 integrations
Built for Small business, Mid-market, Enterprise Small business, Mid-market, Enterprise
Features AWS WAF 4/4 · open-appsec 3/4
Managed rule sets ✓ (best) Not checked yet
API protection ✓ ✓
Bot management ✓ ✓
Rate limiting ✓ ✓
Specs
Deployment model Hybrid Hybrid
Log retention Not checked yet Not checked yet
Our review
Pros
  • Managed rules cover common web exploits, SQL injection, and cross-site scripting.
  • Supports bot controls, rate limiting, CAPTCHA, and Layer 7 DDoS mitigation.
  • Integrates with CloudFront, API Gateway, ALB, AppSync, and other AWS services.
  • Machine-learning protection for OWASP Top 10 and zero-day threats
  • API discovery, schema validation, anti-bot, and rate limiting
  • Integrates with Kubernetes, proxies, gateways, and service meshes
Cons
  • No free plan is available.
  • Rules and request processing add usage-based charges.
  • Connected AWS services can incur separate charges.
  • Requires proxy, gateway, ingress, or service-mesh integration
  • Advanced capabilities may require more security configuration work
  • Central SaaS management is optional rather than the only operating model
Our verdict

AWS WAF is a managed web application firewall for organizations operating applications on AWS. It monitors HTTP(S) requests sent to protected AWS resources and lets teams allow, block, count, challenge, or rate-limit traffic. Rules can use…

Read the review →

open-appsec is an open-source web application firewall and API security solution from Check Point Software Technologies Ltd. It is designed for teams protecting web applications and APIs across Kubernetes, Docker, or Linux environments.…

Read the review →
  1. AWS WAFWeb Application Firewall Software 9.2Paid
  2. open-appsecWeb Application Firewall Software 8.9Open source

Strengths and trade-offs

  • AWS WAF — where it wins

    • Managed rules cover common web exploits, SQL injection, and cross-site scripting.
    • Supports bot controls, rate limiting, CAPTCHA, and Layer 7 DDoS mitigation.
    • Integrates with CloudFront, API Gateway, ALB, AppSync, and other AWS services.

    Where it doesn't

    • No free plan is available.
    • Rules and request processing add usage-based charges.
    • Connected AWS services can incur separate charges.

  • open-appsec — where it wins

    • Machine-learning protection for OWASP Top 10 and zero-day threats
    • API discovery, schema validation, anti-bot, and rate limiting
    • Integrates with Kubernetes, proxies, gateways, and service meshes

    Where it doesn't

    • Requires proxy, gateway, ingress, or service-mesh integration
    • Advanced capabilities may require more security configuration work
    • Central SaaS management is optional rather than the only operating model

More comparisons

All web application firewall software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update