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Katalon Studio vs Selenium IDE: catalog facts
Katalon Studio	Selenium IDE
Freemium Free to start without a credit card, with paid plans and enterprise capabilities.	Free Free and open source.
Windows, macOS, Linux	Browser extension, Command line
Web, mobile, API and desktop testing in one tool No-code, low-code and full-code test authoring	Record and playback with no setup beyond the extension Multiple locators per element for more resilient tests
Proprietary, with key features tied to paid plans Much of the platform is aimed at enterprise QA teams	Recorded tests can need manual editing as sites change Limited to web applications
Downloadable app	Browser extension
Closed source	Open source
License not stated	License: Apache-2.0
Not stated if an account is needed	No account needed
Not stated if it 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 23, 2026

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