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Network Configuration Compare (Before / After)

Free – no sign-upRuns in your browser

Compare two router / switch configurations block by block and get the commands to turn the old version into the new one (or roll back).

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Supports Cisco, Huawei, Nokia SR OS (classic / MD-CLI) and Juniper set format. Noise lines are ignored automatically.

What it does

How it works

1. Load your dataTwo configuration files or pasted text – drag & drop anywhere on the page; the file type is detected automatically.
2. Review the findingsEvery error and warning is clickable and jumps to the exact row, line or parameter, with a proposed fix.
3. Export & shareExcel, PDF and other exports; run history and before / after comparison are kept on your computer.

FAQ

Is my data uploaded to a server?

No. Files are processed in your browser (or by the optional helper app on your own computer). Nothing is stored on our servers.

Do I need to install anything?

No – it is a web app. You can optionally install it as a desktop app from the browser. A small helper app is only needed for tools that must reach your network (ping, port check, auto login).

Is it really free?

Yes – this tool is free to use without an account.

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