IT & Infrastructure
Best Network Testing Software in 2026
Checking network behavior can involve different protocols, test methods, and ways to run tests. Compared on protocol support and test methods, these tools also vary in deployment, scheduled tests, distributed agents, and API access.
- 01 iPerf2
iPerf2 suits people who need active TCP or UDP network measurements across supported platforms, including teams that can set up a client and server.
Free plan Open source Windows · macOS · Linux · iOS8.8 Visit Specs - 02
PingPlotter PingPlotter suits home users troubleshooting a network, small offices monitoring their network, and remote teams using Cloud.
From $6.99/mo Free plan Web · Windows · macOS · Linux8.8 Visit Specs - 03
GitHub CodeQL From $30/mo Free plan Web · Windows · macOS · Linux8.7 Visit Specs - 04 Mininet
Mininet suits developers, researchers and learners working with Linux-based network prototypes or SDN experiments.
Free plan Windows · macOS · Linux · API8.6 Visit Specs - 05 Avidemux Free plan Open source Web · Windows · macOS · Linux8.3 Visit Specs
- 06 Cisco pyATS
It suits network teams that need reusable testing and validation workflows for Cisco devices, with room to extend platform coverage through plugins.
Free plan macOS · Linux · Self-hosted8.2 Visit Specs - 07
EVE-NG EVE-NG suits network, security, and DevOps professionals building emulated labs or training environments.
Free plan Web · Windows · macOS · Linux8.2 Visit Specs - 08
Netpicker Netpicker is aimed at network and NetDevOps engineers who need configuration checks, backups, security validation or remediation.
From $625/mo Free plan Web · Linux · API · Self-hosted8.2 Visit Specs - 09 GNS3
It suits network engineers, learners, and others working on education, certification practice, proofs of concept, demonstrations, or interoperability testing.
Free plan Web · Windows · macOS · Linux8.1 Visit Specs - 10 iperf3
It suits network engineers and developers measuring TCP, UDP, or SCTP performance, especially perfSONAR users and people who need machine-readable output or a reusable library.
Free plan macOS · Linux · API · Self-hosted8.1 Visit Specs - 11 Ostinato
Ostinato suits network teams that need to generate or replay traffic for validation and analysis.
From $12/mo Free trial Windows · macOS · Linux · API8.1 Visit Specs - 12 Batfish
Batfish suits network engineers who want configuration-based policy, security, reliability and change analysis.
Windows · macOS · Linux · API8.0 Visit Specs - 13 LibreSpeed
LibreSpeed suits people or organizations seeking a free speed test they can self-host, with optional telemetry and result storage.
Free plan Web · Windows · macOS · Linux8.0 Visit Specs - 14 OpenSpeedTest
OpenSpeedTest suits people checking a connection in a browser, as well as teams that want an embedded test or a self-hosted deployment.
Free plan Web · Windows · macOS · Linux7.9 Visit Specs - 15 TRex
TRex suits network teams benchmarking devices, testing switches, or generating stateful and stateless traffic.
Free plan Web · Windows · macOS · Linux7.9 Visit Specs - 16 Flent Free plan macOS · Linux7.8 Visit Specs
- 17
Forward Enterprise Free trial Web · API · Self-hosted7.8 Visit Specs - 18
Invariant Invariant suits network and security operators assessing reachability, security policies, and planned network changes.
Free plan Web · API7.8 Visit Specs - 19
IP Fabric Free trial Web · Linux · API · Self-hosted7.8 Visit Specs - 20 M-Lab NDT Web · Linux · iOS · Android7.7 Visit Specs
- 21 Netperf
It suits people familiar with networking protocols who need active throughput or latency measurements on Linux, macOS, or Windows.
Free plan Windows · macOS · Linux7.7 Visit Specs - 22 Tessabyte
Tessabyte suits professionals measuring network quality who want client-server testing across wired or wireless connections.
Free trial Windows · macOS · Linux · iOS7.7 Visit Specs - 23 MoonGen Free plan Linux · Self-hosted7.5 Visit Specs
- 24
perfSONAR perfSONAR suits science facilities, campuses, laboratories, network providers, exchange points, virtual organizations, researchers, and software or service developers.
Free plan Linux · API · Self-hosted7.5 Visit Specs - 25 SmokePing Free plan Web · Linux · Self-hosted7.4 Visit Specs
Free-plan availability and paid starting price can help put those capabilities in context. PingPlotter, LibreSpeed, and TRex are among the options to examine against your testing needs. Consider what kinds of checks you need, whether tests should run on a schedule, and how the deployment and access details align with the environment you work in.
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