NetSim
netsim.dev
What it is
NetSim is a browser-based network simulator for learning and practicing network configurations. It runs in the browser using WebAssembly and supports command-line practice for Cisco IOS, Huawei VRP and Aruba AOS-CX. NetSim Labs says it includes more than 35 labs from HCIA to HCIE level. The Free plan costs nothing, billed at $0 forever, and includes 10 basic labs, up to 15 devices per topology, AI Copilot with a bring-your-own-key setup, and local storage only. Pro costs $15 a month and adds 35+ advanced labs, unlimited devices, included AI Copilot, cloud sync across devices and priority support. Enterprise has custom pricing and lists SSO/SAML, an instructor dashboard, LMS integration through LTI, custom lab creation and dedicated support. Topology configurations and lab progress stay local unless cloud sync is enabled. The core engine is licensed under AGPL v3, with commercial licenses offered for organizations needing other terms.
Spec sheet
- Product
- NetSim is a browser-based network simulator for learning and practicing network configurations.Read 9 Oct 2026 · netsim.dev
- Trial
- The Pro tier has a Start Pro Trial link, but the pricing page does not state the trial duration.Read 9 Oct 2026 · netsim.dev
- Privacy
- Topology configurations and lab progress are processed locally and are not sent to NetSim servers unless cloud sync is enabled.Read 9 Oct 2026 · netsim.dev
- Support
- Pro includes priority support, while Enterprise includes dedicated support.Read 9 Oct 2026 · netsim.dev
- Company
- The site identifies the maker as NetSim Labs.Read 9 Oct 2026 · netsim.dev
- AI assistance
- The Free tier includes AI Copilot with bring-your-own-key, while Pro includes AI Copilot.Read 9 Oct 2026 · netsim.dev
- Enterprise integrations
- The Enterprise tier lists SSO/SAML and LMS integration using LTI.Read 9 Oct 2026 · netsim.dev
- Labs
- The homepage says NetSim includes 35+ hands-on labs from HCIA to HCIE level.Read 9 Oct 2026 · netsim.dev
- Open source
- The maker says the core engine is licensed under AGPL v3 and offers commercial licenses for organizations that need non-AGPL terms.Read 9 Oct 2026 · netsim.dev
- Simulation engine
- The simulator runs in the browser using WebAssembly.Read 9 Oct 2026 · netsim.dev
- Team
- NetSim Labs describes its team as remote-first and globally distributed.Read 9 Oct 2026 · netsim.dev
- Third-party services
- The privacy policy names Vercel for hosting, Stripe for payment processing, and Google Gemini for AI features when enabled.Read 9 Oct 2026 · netsim.dev
- Vendor CLIs
- NetSim supports Cisco IOS, Huawei VRP, and Aruba AOS-CX CLI practice.Read 9 Oct 2026 · netsim.dev
- Who it is for
- The Free tier is described as suitable for students and hobbyists, while Pro is for professionals and power users.Read 9 Oct 2026 · netsim.dev
Plans and prices
Strong points and limits
Strong points
- Practices Cisco IOS, Huawei VRP and Aruba AOS-CX.
- Free plan includes 10 basic labs.
- Pro includes unlimited devices and cloud sync.
- Enterprise lists SSO/SAML and LTI integration.
Limits
- Free tier limits topologies to 15 devices.
- Free AI Copilot requires a bring-your-own key.
- Enterprise pricing is custom.
Who it suits
The Free tier is described as suited to students and hobbyists, while Pro is aimed at professionals and power users. Enterprise includes integrations and support for organizations.
Verdict
NetSim offers a local-first free tier and a paid option with expanded labs, devices and cloud sync. Check the plan details and licensing terms against your learning or organizational needs.
Where Specifiction places it
- Network Simulation Software#14 of 317.8