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Network / Engineering tools

Network Configuration Diff

Compare ordered configuration lines before and after a change, with original line numbers for review. Work locally without uploading network information.

Runs entirely on your deviceNo uploads, accounts, cookies, or personal tracking.

Compare configuration snapshots

Local processing · no input storage

Network tools
Paste a non-empty snapshot, up to 500 non-empty lines.
Paste the proposed or collected snapshot.
Select the format or assumption to use.

Ordered text comparison; blank lines are ignored. Repeated lines remain distinct. This does not understand device configuration hierarchy or generate rollback commands.

Text lists: up to 500 non-empty lines and 256 KiB per field. Tabular results: up to 5,000 rows.

Enter your data, then select compare configuration snapshots.
1. Add your data

Enter your network data or load the worked example.

2. Choose the result

Compare configuration snapshots and review the result and assumptions.

3. Save it locally

Copy the result or download it for your engineering workflow.

About this tool

Use Network Configuration Diff without an upload

Compare ordered configuration lines before and after a change, with original line numbers for review. Work locally without uploading network information.

The operation runs in the current browser tab. Tool input is not included in aggregate analytics, and the standalone download makes no analytics requests.

Network toolsDeveloper tools