ntopng is a network traffic probe that gathers information from traffic mirrors, NetFlow exporters, SNMP devices, firewall logs, and intrusion detection systems.
Alternatives to GlassWire
GlassWire gives individuals a readable view of network behavior alongside a personal firewall. It records current and past activity, breaks desktop traffic down by app, IP, host, and traffic type, and flags unusual changes or unknown devices joining Wi‑Fi. Android users can graph app data use, receive network-access alerts, and block connections over mobile or Wi‑Fi. Premium adds bidirectional controls, custom profiles, Ask to Connect, Lockdown Mode, and unlimited history,…
NetBalancer monitors computer network traffic and lets users control it with process priorities, limits, and rules.
Sniffnet is a free network monitoring app for Linux, macOS, and Windows.
- 4

ManageEngine NetFlow Analyzer
ManageEngine NetFlow Analyzer monitors network bandwidth and traffic, with visibility into applications and analysis of conversations between network endpoints.
Free planAndroidiOSWebLinux7.1From $172 a month - 5
sFlowTrend
sFlowTrend is a graphical network and server monitoring tool that shows leading network users and applications in real time.
Free planWebAPILinuxmacOS7.1Free plan - 6
SoftPerfect Bandwidth Manager
SoftPerfect Bandwidth Manager is a Windows network tool for monitoring traffic and setting bandwidth limits and quality-of-service rules.
Free planLinuxmacOSWindows7.0$49 one-time - 7

ElastiFlow
Free planWebAPILinuxSelf-hosted6.9Free plan - 8
FlowViewer
FlowViewer is free software for analyzing Netflow data exported from an organization's network devices.
Free planWebLinux6.8$500 one-time - 9

Kentik Network Monitoring System
Kentik Network Monitoring System is a SaaS service for monitoring network health and performance.
WebAPI6.6From $24,000 a year - 10
SparrowIQ
SparrowIQ analyzes network traffic and provides visibility alongside existing network management systems.
AndroidiOSWebWindows6.6 - 11
Plixer Scrutinizer
Plixer Scrutinizer analyzes NetFlow data to show network traffic activity and operational patterns.
WebAPISelf-hosted6.5From $12,996 a year - 12
Bandwidth Monitor
Bandwidth Monitor is a free, open-source dashboard for real-time network visibility on Linux routers and hosts.
iOSWebAPILinux6.4 - 13
Cacti
Cacti is a free, self-hosted framework for network graphing and operational monitoring, built around RRDtool.
Free planWebLinuxSelf-hostedWindows6.4Free plan - 14

NetCrunch
WebAPISelf-hostedWindows6.4From $1,900 a year - 156.3Free plan
- 16
DU Meter
Windows6.2$8.98 one-time - 17
Intermapper
Intermapper helps IT and infrastructure teams discover network devices, map their relationships, monitor health and performance, and receive alerts when conditions change.
WebAPILinuxmacOS6.2 - 18
NetVizura NetFlow Analyzer
NetVizura NetFlow Analyzer is a self-hosted tool for visualizing network traffic by device, interface, subnet, traffic segment, and end user.
WebLinuxSelf-hostedWindows6.2 - 19

Akvorado
Akvorado is a free network-flow monitoring tool that enriches traffic data and makes it available through a web interface.
WebAPILinuxmacOS6.1 - 20
Download Navi
Download Navi is a free, open-source download manager for Android 4.4 and later.
Free planAndroid6.1Free plan - 21

Progress Flowmon
Progress Flowmon is a network and security monitoring platform that uses AI-based detection to identify threats and anomalies while providing network…
WebAPILinuxSelf-hosted6.0 - 225.9Free plan
- 23
MRTG
MRTG is free software for monitoring network traffic and publishing HTML pages with PNG graphs.
Free planLinuxSelf-hostedWindows5.9Free plan - 24
NetHogs
NetHogs is a free, text-based network bandwidth monitor that groups traffic by process rather than by protocol or subnet.
Free planLinuxmacOS5.9Free plan - 25
NetLimiter
NetLimiter is paid Windows software for monitoring internet traffic and controlling bandwidth.
Windows5.8 - 26
iftop
iftop is free Linux software that displays current bandwidth usage between pairs of hosts on a network interface.
Free planLinux5.7Free plan - 27
vnStat
vnStat is a free, console-based network traffic monitor for Linux that records traffic on selected interfaces.
Free planLinuxSelf-hosted5.7Free plan - 28
OphanimFlow
OphanimFlow is a free, GPL-3.0 toolkit for collecting, classifying, and preprocessing NetFlow, IPFIX, and sFlow data.
WebAPILinuxSelf-hosted5.6 - 29
pmacct
pmacct is a free, self-hosted suite of passive network monitoring tools for Linux.
LinuxSelf-hosted5.5 - 30
Nagios Network Analyzer
WebLinux4.9
