SpiderMonkey Alternatives

Apps similar to SpiderMonkey include Hermes JS Engine, which is free and open source. Other options are V8. Between them they cover Mac, Windows, Linux, Android and iPhone.

More about SpiderMonkey

Add Alternatives

SpiderMonkey alternatives page was last updated Aug 11, 2025

Hermes JS Engine
1 like
Hermes is a JavaScript engine optimized for fast start-up of React Native apps. It features ahead-of-time static optimization and compact bytecode.
Cost / License
Free
Open Source (MIT)
Origin
United States
Platforms
Mac
Windows
Linux
Good alternative?Is Hermes JS Engine a good alternative to SpiderMonkey?
V8
Like
Google's javascript engine.
Cost / License
Free
Open Source
Platforms
Mac
Windows
Linux
Android
iPhone
BSD
Good alternative?Is V8 a good alternative to SpiderMonkey?

2 of 2 SpiderMonkey alternatives