Compare software

NextTrace vs Scamper: catalog facts
NextTrace	Scamper
Free Free and open source.	Free Scamper is free software licensed under GPL-2.0.
Command line	Windows, macOS, Linux, Command line
Shows geolocation and ASN for every hop Fast trace mode for quick checks	Supports IPv4 and IPv6 probes Runs measurements across destinations in parallel
Command line only Geolocation lookups rely on online IP data sources	Some measurement modules require IPFW or PF.
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: GPL-2.0-only
Not stated if an account is needed	Not stated if an account is needed
Needs internet	Needs internet
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked October 8, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.