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Gatling vs Tsung: catalog facts
Gatling	Tsung
Freemium The Community Edition is free and open source; Enterprise Edition is a paid hosted service…	Free Free and open source under the GPL-2.0 license.
Web, Command line	Linux, Command line
Open-source Community Edition you can run on your own machines Load tests are written as code and can be kept in version control	Distributed load testing Supports HTTP and several database and messaging protocols
Writing tests as code assumes programming experience Advanced analysis and tracing are only in the paid Enterprise Edition	Requires Erlang
Downloadable app, Hosted service	Downloadable app
Open source	Open source
License not stated	License: GPL-2.0
Not stated if an account is 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 September 24, 2026	Official website Full listing and sources Checked October 8, 2026

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