Safing Portmaster is a free next-generation firewalls tool by Safing. Endian UTM is a commercial next-generation firewalls tool by Endian. Compare features, ratings, integrations, and community reviews side by side to find the best next-generation firewalls fit for your security stack.
CST VerdictBased on our analysis of NIST CSF 2.0 coverage, core features, company size fit, deployment model, here is our conclusion:
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.
Mid-market and SMB teams needing perimeter security with actual visibility into encrypted traffic will find Endian UTM does the job without overengineering. It covers the basics well: IPS, web filtering, email filtering, and VPN at a price point that doesn't require justifying to finance, plus hardware and virtual deployment options mean you're not locked into one model. Skip this if you're an enterprise expecting 24/7 vendor support or need deep integration with your existing SIEM; Endian's a straightforward gateway that stops threats at the edge, not a platform that talks to everything else in your stack.
An open-source application firewall that monitors network traffic with custom rules
UTM security gateway for IT networks with threat management and connectivity
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Common questions about comparing Safing Portmaster vs Endian UTM for your next-generation firewalls needs.
Safing Portmaster: An open-source application firewall that monitors network traffic with custom rules. built by Safing. headquartered in Austria. Core capabilities include Firewall, Privacy Network, Content Filtering..
Endian UTM: UTM security gateway for IT networks with threat management and connectivity. built by Endian. headquartered in Italy. Core capabilities include Network awareness for visibility into network traffic and devices, Advanced firewall protection with security policy enforcement, Intrusion prevention system to detect and block threats..
Both serve the Next-Generation Firewalls market but differ in approach, feature depth, and target audience.
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