Rhino (JavaScript engine)

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Rhino
Original author(s)	Norris Boyd
Developer(s)	1997: Mozilla Foundation 1998: Mozilla Corporation Present: volunteers
Stable release	1.8.0 / January 3, 2025; 5 months ago (2025-01-03)
Repository	github.com/mozilla/rhino
Written in	Java, JavaScript
Operating system	Cross-platform
Platform	Java virtual machine
Type	JavaScript engine
License	MPL 2.0
Website	rhino.github.io

Rhino is a JavaScript engine to run the JavaScript programming language written fully in Java language and managed by the Mozilla Foundation as free and open-source software. It is separate from the SpiderMonkey engine, which is also developed by Mozilla, but written in the C++ language and used in the Firefox web browser.