kb/data/developer.mozilla.org/en-US/docs/Glossary/Engine-0.md

title	chunk	source	category	tags	date_saved	instance
Engine - Glossary | MDN	1/3	https://developer.mozilla.org/en-US/docs/Glossary/Engine	reference	web, html, css, javascript, documentation	2026-05-05T05:30:31.978679+00:00	kb-cron

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1. Glossary
2. Engine

Engine

The term engine can have several meanings depending on the context. It may refer to:

JavaScript engine JavaScript engines are interpreters that parse and execute JavaScript code. Modern JavaScript engines use just-in-time (JIT) compilation to convert JavaScript code into machine code that can be executed by a computer's processor. A JavaScript engine is typically developed and used in web browsers to run client-side code but can also be used in server-side environments like Node.js.