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LFT vs NextTrace: catalog facts
LFT	NextTrace
Free Free and open source under the project's open source license.	Free Free and open source.
macOS, Linux, Self-hosted, Command line	Command line
Supports TCP, UDP and ICMP probe methods Traces IPv4 and IPv6 paths	Shows geolocation and ASN for every hop Fast trace mode for quick checks
WhoB and routing information use network lookups	Command line only Geolocation lookups rely on online IP data sources
Downloadable app	Downloadable app
Open source	Open source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked September 24, 2026

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