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Apache JMeter vs Grafana k6: catalog facts
Apache JMeter	Grafana k6
Free Free and open source from the Apache Software Foundation.	Free The k6 tool itself is free and open source.
Windows, macOS, Linux, Command line	Command line
Tests many protocols, including HTTP, REST, SOAP, FTP and databases Distributed testing across several machines	Test scenarios written in plain JavaScript Single command-line tool, also usable in Docker
Requires a Java runtime Test plans take time to learn for newcomers	Requires writing scripts; no graphical test builder in the tool itself Aimed at developers rather than casual site owners
Downloadable app	Downloadable app
Open source	Open source
License: Apache-2.0	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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