Rhino (JavaScript engine)

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Rhino

Original author(s)	Norris Boyd
Developer(s)	1997: Mozilla Foundation, 1998: Mozilla Corporation, now developed by volunteers.
Stable release	1.7.14 / January 6, 2022; 2 years ago (2022-01-06)
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	mozilla.github.io/rhino/

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