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Loadster vs Loader.io: catalog facts
Loadster	Loader.io
Freemium Free to start testing, with paid plans for larger tests.	Freemium Free load testing service with paid plans listed on its pricing page.
Web	Web
Choice of real browsers, HTTP bots or Playwright scripts Runs from 32 cloud regions	No load generation infrastructure to run yourself Real-time monitoring of each test
Cloud service only, not self-hostable Large tests require a paid plan	Requires an account and registering your target host Closed source hosted service
Hosted service	Hosted service
Closed source	Closed source
License not stated	License not stated
Account needed	Account needed
Needs internet	Needs internet
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 24, 2026

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