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Selenium vs Katalon Studio: catalog facts
Selenium	Katalon Studio
Free Free and open source under the Apache 2.0 licence.	Freemium Free to start without a credit card, with paid plans and enterprise capabilities.
Windows, Self-hosted, Command line	Windows, macOS, Linux
Widely used standard for browser automation Grid distributes tests across many machines and browsers	Web, mobile, API and desktop testing in one tool No-code, low-code and full-code test authoring
Requires writing test code Running a Grid takes setup and maintenance	Proprietary, with key features tied to paid plans Much of the platform is aimed at enterprise QA teams
Downloadable app, Self-hosted	Downloadable app
Open source	Closed source
License: Apache-2.0	License not stated
No account needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
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.