Free ECMAScript Interpreter (or FESI, pronounced fuzzy) is a free ECMAScript engine, specifically ECMA-262 1ed. The interpreter is itself written in the Java programming language.

firecat, a server-side JavaScript webserver, uses FESI as its ECMAScript Interpreter.

See also

• List of ECMAScript engines
• Comparison of ECMAScript engines

External links

• FESI

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