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Siege vs Artillery: catalog facts
Siege	Artillery
Free Free and open source.	Freemium The CLI is open source; Artillery Cloud has a free sign-up with paid options.
macOS, Linux, Command line	Web, Command line
Tests many URLs at once from a list Configurable number of simulated users	Load testing and Playwright E2E testing in one toolkit Can run on your own AWS or Azure infrastructure
Command line only, with no graphical reports Scripting options are simpler than in newer load testers	Reporting dashboard features belong to the hosted cloud service Turbo runner for Playwright is still in beta
Downloadable app	Downloadable app, Hosted service
Open source	Open source
License: GPL-3.0	License: MPL-2.0
No account needed	No account needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 24, 2026

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