Trail : Npm behaviour analysis tool

hi,

I've been triaging suspicious packages long enough to get tired of stitching the same five tabs together every time something weird shows up in a dependency tree, so I built this to keep it all in one place: https://trail.snappyfeet.org

you can also check the about section for more info: https://trail.snappyfeet.org/about.html

I use it daily and figured I'd share. It's not something that tells you whether something is malicious or not, that's not the philosophy. It rather focuses on raising flags for humans to then take a look into. Feed's live most of the time, I take it down occasionally to update the engine. If there's a package you want to see that isn't in there or would like to understand how the engine works, DM me.

Cheers!

Posted Aug 13, 2026, 4:40 PM UTC

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