Upload or paste two Cisco IOS or NX-OS configuration files and instantly see what changed, with a generated migration script you can run directly on your device. Supports IOS, IOS-XE, and NX-OS. Free, no account needed.
When you need it: validating a change window by comparing pre and post maintenance backups, checking a device's running config against your golden baseline, confirming a hardware replacement carried every setting across, or documenting drift between two configs pulled months apart. The comparison is hierarchical, so changes are grouped under the interface or section they belong to instead of showing up as line-by-line noise.
Cisco IOS, IOS-XE, and NX-OS. Paste both configs or upload the files, running config or startup config.
Yes. Along with the visual diff you get an IOS style migration script, with the lines to add and the lines to negate, so you can move a device from the old config to the new one. Review it before running it on a production device.
No. The config diff is free and needs no login.
All tools: CiscoTools.dev · IOS to NX-OS Translator · Config Sanitizer · Template Manager · Subnet and VLAN Planner · Config Compliance Checker · BGP Best-Path Explainer · Interface Cleanup Auditor · Network Script Builder · SanitizeDrop (Desktop) · Network Configurator (download) · NetOps Widgets (download) · Pro