CheerpJ 5.0 is out. Run Java 21 in the browser, with Java 25 in preview. Read the announcement

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Discover the latest insights, news, and updates about CheerpJ, the technology that brings Java applications to the web browser.

The CheerpJ 5 logo above a browser window showing a wireframe cube

Stefano De Rossi

CheerpJ 5.0: A new beginning. Real Java in the browser

Nine years after its first release, CheerpJ starts again. CheerpJ 5.0 reaches Java LTS parity, ships a full JDK for every Java version and previews a new WasmGC engine, and it arrives with a new website, a new brand and simpler licensing.

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