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drill vs Grafana k6: catalog facts
drill	Grafana k6
Free Free and open source.	Free The k6 tool itself is free and open source.
Command line	Command line
Test plans are plain YAML files Fast native binary written in Rust	Test scenarios written in plain JavaScript Single command-line tool, also usable in Docker
Command line only, no graphical interface Focused on HTTP load testing	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 not stated	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 23, 2026

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