diff --git a/boa/src/builtins/json.rs b/boa/src/builtins/json.rs
deleted file mode 100644
index 72c8c6b33a..0000000000
--- a/boa/src/builtins/json.rs
+++ /dev/null
@@ -1,100 +0,0 @@
-//! This module implements the global `JSON` object.
-//!
-//! The `JSON` object contains methods for parsing [JavaScript Object Notation (JSON)][spec]
-//! and converting values to JSON. It can't be called or constructed, and aside from its
-//! two method properties, it has no interesting functionality of its own.
-//!
-//! More information:
-//!  - [ECMAScript reference][spec]
-//!  - [MDN documentation][mdn]
-//!  - [JSON specification][json]
-//!
-//! [spec]: https://tc39.es/ecma262/#sec-json
-//! [json]: https://www.json.org/json-en.html
-//! [mdn]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON
-
-use crate::builtins::function::NativeFunctionData;
-use crate::builtins::object::{Object, ObjectKind, PROTOTYPE};
-use crate::builtins::value::{to_value, ResultValue, Value, ValueData};
-use crate::exec::Interpreter;
-use serde_json::{self, Value as JSONValue};
-
-/// `JSON.parse( text[, reviver] )`
-///
-/// This `JSON` method parses a JSON string, constructing the JavaScript value or object described by the string.
-///
-/// An optional `reviver` function can be provided to perform a transformation on the resulting object before it is returned.
-///
-/// More information:
-///  - [ECMAScript reference][spec]
-///  - [MDN documentation][mdn]
-///
-/// [spec]: https://tc39.es/ecma262/#sec-json.parse
-/// [mdn]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/parse
-// TODO: implement optional revever argument.
-pub fn parse(_: &Value, args: &[Value], _: &mut Interpreter) -> ResultValue {
-    match serde_json::from_str::<JSONValue>(
-        &args
-            .get(0)
-            .expect("cannot get argument for JSON.parse")
-            .clone()
-            .to_string(),
-    ) {
-        Ok(json) => Ok(to_value(json)),
-        Err(err) => Err(to_value(err.to_string())),
-    }
-}
-
-/// `JSON.stringify( value[, replacer[, space]] )`
-///
-/// This `JSON` method converts a JavaScript object or value to a JSON string.
-///
-/// This medhod optionally replaces values if a `replacer` function is specified or
-/// optionally including only the specified properties if a replacer array is specified.
-///
-/// An optional `space` argument can be supplied of type `String` or `Number` that's used to insert
-/// white space into the output JSON string for readability purposes.
-///
-/// More information:
-///  - [ECMAScript reference][spec]
-///  - [MDN documentation][mdn]
-///
-/// [spec]: https://tc39.es/ecma262/#sec-json.stringify
-/// [mdn]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify
-pub fn stringify(_: &Value, args: &[Value], _: &mut Interpreter) -> ResultValue {
-    let obj = args.get(0).expect("cannot get argument for JSON.stringify");
-    let json = obj.to_json().to_string();
-    Ok(to_value(json))
-}
-
-/// Create a new `JSON` object.
-pub fn create_constructor(global: &Value) -> Value {
-    let json = ValueData::new_obj(Some(global));
-
-    make_builtin_fn!(parse, named "parse", with length 2, of json);
-    make_builtin_fn!(stringify, named "stringify", with length 3, of json);
-
-    to_value(json)
-}
-
-#[cfg(test)]
-mod tests {
-    use crate::{exec::Executor, forward, realm::Realm};
-
-    #[test]
-    fn json_sanity() {
-        let realm = Realm::create();
-        let mut engine = Executor::new(realm);
-        assert_eq!(
-            forward(&mut engine, r#"JSON.parse('{"aaa":"bbb"}').aaa == 'bbb'"#),
-            "true"
-        );
-        assert_eq!(
-            forward(
-                &mut engine,
-                r#"JSON.stringify({aaa: 'bbb'}) == '{"aaa":"bbb"}'"#
-            ),
-            "true"
-        );
-    }
-}