List of ECMAScript Engines
These are new generation ECMAScript engines for web browsers, all implementing just-in-time compilation (JIT) or variations of that idea. The performance benefits for just-in-time compilation make it much more suitable for web applications written in JavaScript.
- Carakan: A JavaScript engine developed by Opera Software ASA, included in the 10.50 release of the Opera web browser.
- Chakra: A new IE JScript engine used in Internet Explorer 9. It was first previewed at MIX 10 as part of the Internet Explorer Platform Preview.
- SpiderMonkey: A JavaScript engine in Mozilla Gecko applications, including Firefox. The engine has two types of JIT compilers, that are sometimes referred to as JägerMonkey or TraceMonkey.
- SquirrelFish: The JavaScript engine for Apple Inc.'s WebKit. Also known as Nitro.
- Tamarin: An ActionScript and ECMAScript engine used in Adobe Flash.
- V8: A JavaScript engine used in Google Chrome and Node.js.
- JavaScriptCore: A JavaScript interpreter originally derived from KJS. It is used in the WebKit project and applications such as Safari.
- Nashorn: A JavaScript engine used in Oracle Java Java Development Kit (JDK).
The following engines use runtime interpreters, which do not compile into native machine code and generally run more slowly.
- Continuum: A self-interpreter that supports recent iterations of the draft ECMAScript 6 specification. Uniquely, the engine is implemented in ECMAScript 3, which makes it possible to run ES6 in browsers as old as IE6.
- Futhark: The ECMAScript engine of the Opera web browser versions 9.50 to 10.10.
- InScript: An obsolete proprietary library used for iCab 2 and 3
- JScript: The engine that is used in Internet Explorer for versions up to IE9, and one component of the Trident layout engine.
- KJS: The engine used in Konqueror, and one component of KHTML, a predecessor to JavaScriptCore.
- Linear B: The ECMAScript engine of the Opera web browser versions 7.0 to 9.50, exclusive.
- Narcissus: JavaScript implemented in JavaScript (a meta-circular evaluator), intended to run in another JavaScript engine, of theoretical and educational nature only.
- QtScript: Originally developed by Trolltech, now owned by Nokia. It provides QObject integration with JavaScriptCore.
- Rhino: One of several JavaScript engines from Mozilla, using the Java platform.
- YAJI: An ECMAScript engine based on the FESI implementation by Jean-Marc Lugrin in 1999, using the Java platform, currently being developed to support the latest standards (Spec 262, v5.1).
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