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

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