netcanon is an open-source tool that translates device configurations between network vendors — Cisco, Juniper, Arista, and more — and backs up configs over SSH. Paste a config, pick a target platform, and see exactly what carries over and what doesn’t.
Your session runs in an isolated instance that self-destructs within 15 minutes — usually the moment you leave. A tab left open but untouched is reclaimed after about 10 minutes of inactivity (sooner under heavy load), so keep translating to hold your session to the full 15. Nothing you paste is stored.
A fresh, isolated container just for you.
You already have the max sessions open from your network, or you’re starting too fast — close another tab or wait ~30 seconds and try again.
Something went wrong on the way to the server. It happens.
Every visitor gets a genuinely isolated instance, and there are only so many to go around. Under heavy load, an untouched session may be reclaimed early to make room. That the demo fails closed instead of quietly sharing instances is kind of the point.
Retrying automatically in 10s…
Everything else still works: netcanon.net · the whitepaper — and the command below runs the same image locally, with no wait:
docker run --rm -p 8000:8000 -e NETCANON_ALLOW_INSECURE_BIND=1 ghcr.io/netcanon/netcanon
amd64/x86-64 image.
That’s the whole idea. Refreshing gets you a fresh instance.
This is the demo’s own front page, reached from netcanon’s Dashboard link — which points at the site root and so loads it inside your instance frame.
Starting another demo here would replace the instance you are using now, discarding anything you have pasted into it.