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NextTrace vs OpenTrace: catalog facts
NextTrace	OpenTrace
Free Free and open source.	Free Free and open source under the GPL-3.0 licence.
Command line	Windows, macOS, Linux
Shows geolocation and ASN for every hop Fast trace mode for quick checks	Visual display of traceroute hops Runs on Windows, macOS and Linux
Command line only Geolocation lookups rely on online IP data sources	Focused on route tracing only Documentation is partly in Chinese
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: GPL-3.0
Not stated if an account is needed	No account needed
Needs internet	Needs internet
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked October 1, 2026

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