Best Network Testing Software in 2026
Updated
In short: PingPlotter is ranked #1 of 31 as of 4 October 2026, ahead of TRex and LibreSpeed. The best-ranked option with a free plan is TRex. The lowest first paid tier on this page is Ostinato at $12/mo.
Network testing software helps you examine connectivity and behavior using different protocols and test methods. Compared on protocol support, test methods, deployment, scheduled tests, distributed agents, and API access, the entries provide several dimensions to consider for your testing setup. PingPlotter, TRex, and LibreSpeed are among the options shown. Think about where tests need to run and whether you need scheduling, automation through APIs, or distributed coverage. Free-plan availability and paid-from pricing are also listed, giving you cost details to weigh alongside the deployment and testing capabilities relevant to your environment.
31 network testing software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
Network Testing Software, ranked on how quickly a newcomer can get going. 15 of the 25 on this page can be tried for free.
- 1 PingPlotterPaid from $29/mo
- Free to practise on: yes
- Free trial: yes
- Well documented: yes
- Runs where you work: yes
- 2 TRexFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
- 3 LibreSpeedFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
- 4 EVE-NGFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
- 5 Cisco pyATSFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 6 NetpickerPaid from $625/mo
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 7 FlentFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 8 OstinatoPaid from $12/mo
- Free to practise on: not on record
- Free trial: yes
- Well documented: yes
- Runs where you work: yes
- 9 GNS3Free plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
- 10 NetperfFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
- 11 iperf3Free plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 12 IP Fabric
- Free to practise on: not on record
- Free trial: yes
- Well documented: yes
- Runs where you work: not on record
- 13 perfSONARFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 14 OpenSpeedTestFree plan
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: yes
- 15 iPerf2
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: yes
- 16 NetBeez
- Free to practise on: not on record
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
- 17 M-Lab NDT
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 18 PacketForge
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 19 Pktgen-DPDK
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 20 Tessabyte
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: yes
- 21 InvariantFree plan
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 22 PacketCheck
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 23 MoonGen
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 24 Cisco ThousandEyes
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: yes
- 25 Batfish
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: yes
Is your platform on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which network testing software is ranked first on The Geeks Club?
PingPlotter is ranked #1 of 31 with a score of 8.0. TRex is second and LibreSpeed third.
How many of these have a free plan?
13 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, Ostinato has the lowest first paid tier we found: $12/mo.
How is this list ranked?
Ranked on how quickly a newcomer can get going: documentation depth, a free tier or trial, and the platforms it runs on. Paid placements never change a rank.