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Best Free Alternatives to WhatsUp Gold (by Progress)
Stop paying $1,169/yr (Business) - $3,299/yr (Enterprise Plus). Discover professional-grade tools that won't break your budget.
Category: Network & Infrastructure MonitoringVerified for 2025
Top Recommended Replacements
Zabbix 7.0+
FREEBest Professional Free Alternative
Why we like it
100% free with no device limits; the 2025/2026 builds feature native OpenTelemetry support and high-performance proxy scaling; highly customizable for any metric.
Keep in mind
The UI is less 'pretty' and less intuitive than WhatsUp Gold's maps; requires higher technical skill to configure complex dependencies.
Checkmk
FREEBest for Speed & Automation
Why we like it
Fastest setup in the industry via rule-based configuration; exceptional at monitoring large file systems and storage; very low CPU/RAM overhead for the monitoring server.
Keep in mind
The 'Free' version lacks the high-performance commercial core and automated agent updates found in the Enterprise edition.
Paessler PRTG
FREEBest for Ease of Use
Why we like it
Most intuitive interface for Windows-centric networks; 'All-in-one' license covers NetFlow and Application monitoring without extra modules; free for up to 100 sensors.
Keep in mind
Pricing becomes extremely steep at scale (per-sensor model); limited for deep Linux/Unix-specific automation compared to Zabbix.
Nagios XI
The Reliable Industry Workhorse
Why we like it
Unrivaled plugin ecosystem (thousands of community scripts); rock-solid stability; high degree of customization for mission-critical apps.
Keep in mind
The web interface feels dated compared to the modern 'Progress' UI; configuration can be technical and 'heavy'.
Auvik
Best Cloud-Native Alternative
Why we like it
Automated network mapping that rivals WhatsUp Gold; handles configuration backups and remote management natively; SaaS-based with zero local server maintenance.
Keep in mind
No permanent free tier; can be expensive for networks with many managed switches/routers; less focus on server/OS-level metrics.
LibreNMS
FREEBest for Simple Network Health
Why we like it
Incredibly fast auto-discovery for multi-vendor hardware; completely free; features a clean, mobile-responsive UI; integrates with Oxidized for config backups.
Keep in mind
Primarily focused on 'Network' (SNMP) devices; less capable for deep Application Performance Monitoring (APM).
Site24x7
Best for Hybrid/Cloud Monitoring
Why we like it
Unified monitoring for websites, servers, and cloud (AWS/Azure); very affordable entry point; AI-powered anomaly detection helps spot trends early.
Keep in mind
SaaS only (data leaves your network); pricing based on 'monitors' can be confusing as your infrastructure grows.
NinjaOne
Best for MSPs & Remote Teams
Why we like it
Combines monitoring with remote management and patching; world-class support; highly automated endpoint discovery and security.
Keep in mind
Not a traditional 'Network Performance Monitor' (NPM); lacks the deep SNMP mapping depth of WhatsUp Gold.
Icinga 2
FREEBest for Modular Architecture
Why we like it
Modernized fork of Nagios; highly flexible API-first approach; excellent for developers who want to build their own dashboards.
Keep in mind
Requires significant Linux expertise to set up; no 'one-click' map discovery like Progress offers.
Netdata
FREEBest for Per-Second Real-Time Monitoring
Why we like it
Zero-configuration required; provides per-second resolution for CPU, RAM, and disk; beautiful, modern dashboards; perfect for your aaPanel VPS.
Keep in mind
Focused on performance monitoring rather than 'Network Management' (no SNMP mapping or config management).
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