Application Gateway vs Safing Portmaster: Side-by-Side Comparison (2026)
Features, pricing, ratings, and pros and cons, compared head to head.
Application Gateway is a free cloud web application and api protection tool. Safing Portmaster is a free next-gen firewalls tool by Safing. Compare features, ratings, integrations, and community reviews side by side to find the best cloud web application and api protection fit for your security stack. Independent and vendor-neutral: our scores and rankings are earned, never bought — sponsored placement is always labeled.
CST VerdictShort answer
Teams running multi-region cloud applications on Azure will get the most from Application Gateway because its native integration with Azure infrastructure eliminates the latency and complexity of bolted-on WAF solutions. It handles Layer 7 load balancing with built-in DDoS protection across Microsoft's global backbone, and the free tier removes budget friction for teams testing WAF capabilities before scaling. Skip this if you need a vendor-agnostic WAF that ports easily to AWS or GCP; Application Gateway is tightly coupled to Azure and doesn't play well outside that ecosystem. Startups and individual security practitioners who need granular per-application network control without licensing friction should use Safing Portmaster; it's free, open-source, and runs locally so you own the ruleset and logs. The tool covers NIST DE.CM continuous monitoring of network anomalies and PR.IR infrastructure resilience through application-level firewall rules, kill switch, and encrypted DNS, giving you visibility most OS firewalls skip. Skip this if your team expects vendor support, cloud-native orchestration, or centralized policy management across dozens of endpoints; Portmaster is single-machine focused and backed by a two-person team in Austria.
Based on our analysis of NIST CSF 2.0 coverage, core features, company size fit, deployment model, here is our conclusion:
