Not just a simulator.
A network digital twin.
netplex. is emulation, execution and automation in one event-driven platform - open to your own tooling, and to your own AI agent. Here's the whole thing: the canvas, the consoles, the pipeline, the automation toolbox, the MCP server and the distributed fabric.
A topology you'll actually
want to look at.
Premium, flat, dark-first. Drag nodes, draw links in four styles, annotate, and watch live packet flow stream across the fabric - all on a circuit-board canvas built for engineers reading dense screens at 2am.
- Curve · Arc · Ortho · Straight links; parallel links fan out
- Live link flow - see traffic move, not invented Gbps numbers
- Export to SVG, PNG (2×) or JSON - Visio / draw.io friendly
- Presentation mode - laser, pen, arrows, shapes & spotlight over your live topology · Professional
Recolour the entire app -
panels, canvas, nodes and all.
A gradual ladder - two light, four dark, Mist through Midnight, with Graphite as the default. Every theme defines a complete token set, so the whole interface - not just the background - moves with it. Then pick any of ten UI accents.
Every device.
Three shell families.
Router, switch, server and cloud gateway - the same four devices, rendered in each of the three shell families, standalone and not wired into a lab.
Draw links your way.
Curve, Arc, Ortho or Straight - then tap, shape, isolate or watch every protocol crossing them.
Drop an image. Walk away.
No more SSH-ing in, juggling files and running fixpermissions. netplex. does the whole thing - convert, set permissions, organise, boot-test - and shows you every step. No CLI.
Auto-classify
Matches the upload against 140+ device kinds across 65+ vendors and gives it a human name - never vios-adventerprisek9-m.SPA…
Disk-guarded
Refuses an upload before it fills your disk: "Only 8.2 GB free - needs ≥10 GB." A precise, actionable message, never a stack trace.
Boot-tested
Every image gets a headless boot check right after import - Ready doesn't wait on it, but if it fails you get what happened, why, and what to do, not a stack trace.
Bring your own licensed images.
We handle the rest.
From core routers to next-gen firewalls and white-box NOS. Alpine MicroVM ships free and built-in; vendor images are user-provided, and the pipeline classifies, converts and boot-tests them automatically.
All vendor names and marks belong to their respective owners and are shown to indicate supported device definitions only.
No PuTTY. No SecureCRT.
Just talk to your nodes.
Dockable, tabbed, tiled consoles right in the browser - pop them into their own window, theme them like your favourite terminal, and type once to send to every selected session.
- Broadcast mode - type once, send to all consoles
- 30 colour schemes, snippet bar
Everything the UI does
is an API call.
Drive netplex. from your own tooling. A full REST + WebSocket API, an MCP server for AI agents, API keys, a CLI and CI-ready lab tests ship today; the Terraform provider and Ansible collection are in beta - the complete automation toolbox, on a single Architect seat.
Not just an API.
An interface your AI agent can drive.
Alongside the REST API, netplex. ships a real MCP server - the same protocol Claude, Cursor and other AI agents use to act on live systems, not just describe what they'd do. Point one at a running lab and it can see the topology, read live configs and CLI output, and run commands.
- 32 MCP tools - build, wire and power labs, read topology, run CLI commands, and pull real link/interface evidence to debug a lab, not just build it
- Scoped tokens generated from the app - works with any MCP-compatible agent, no shared secrets
Not a chatbot bolted on. A real interface an agent can drive.
32 MCP tools, scoped tokens, live topology access - point any MCP-compatible agent at it and watch.
A single seat. The whole toolbox.
Architect holds nothing back. There's no reason to cripple a single-seat licence - you get every automation surface we ship.
Full tc/netem QoS
Delay, jitter, loss, corruption, duplication and a bandwidth cap on every link. Serious WAN simulation, not a toy.
Any topology, saved as code
Build AWS VPC, SD-WAN multi-site, hub-and-spoke - anything - on the free-form canvas, then save it as portable .npx. One-click starter templates for common topologies are in development.
MicroVM nodes · beta
Firecracker MicroVMs for lightweight Linux nodes (Kata support is built but not yet verified). Alpine ships free and built-in; build your own Ubuntu image.
IPv6 labs
OSPFv3, BGP4+, SLAAC/DHCPv6 and SRv6 run natively between your nodes over the L2 fabric today. First-class dual-stack tooling - lab templates, canvas labels and an IPv6 NAT gateway - is in development (see the roadmap).
Two machines.
One topology.
The headline differentiator nobody else does. A single lab spans several cheap PCs and cloud VMs - netplex. stitches their virtual switches together with VXLAN tunnels, so a link between nodes on different machines just works.
Distributed multi-chassis VXLAN is on the roadmap and currently in beta. Single-host emulation, automation and the full Architect toolbox ship today.
- Scheduler places nodes by free RAM across hosts
- Designed so a host dropping degrades only its nodes · in progress
The link doesn't care which machine a node lives on.
See it on your own machine.
Start on the free Associate tier, import an EVE-NG lab, and explore the whole platform in minutes.