YourKit free for open source — what you get and how to apply

Free YourKit Java Profiler license for developers of the open source project; one installed copy at a time per license key, for development of that specific project only. YourKit asks for a reference link on the project's web pages.

Eligibility: for the project; non-commercial only; Granted to developers of non-commercial open source projects with an established and active community.

How to apply: Email sales@yourkit.com with subject "YourKit Java Profiler Open Source License Request".

last verified 2026-07-06