diff --git a/Cargo.toml b/Cargo.toml
index dd5d31da..8c9563e8 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -40,6 +40,7 @@ module = ["mlua_derive", "ffi/module"]
 async = ["futures-util"]
 send = []
 serialize = ["serde", "erased-serde", "serde-value"]
+json = ["serialize", "serde_json"]
 macros = ["mlua_derive/macros"]
 unstable = []
 
@@ -51,6 +52,7 @@ num-traits = { version = "0.2.14" }
 rustc-hash = "1.0"
 futures-util = { version = "0.3", optional = true, default-features = false, features = ["std"] }
 serde = { version = "1.0", optional = true }
+serde_json = { version = "1.0", optional = true }
 erased-serde = { version = "0.3", optional = true }
 serde-value = { version = "0.7", optional = true }
 parking_lot = { version = "0.12", optional = true }
diff --git a/src/value.rs b/src/value.rs
index 2caa98ea..55c2c13f 100644
--- a/src/value.rs
+++ b/src/value.rs
@@ -628,6 +628,18 @@ pub trait FromLuaMulti<'lua>: Sized {
     }
 }
 
+#[cfg(feature = "json")]
+impl<'lua> FromLua<'lua> for serde_json::Value {
+    fn from_lua(value: Value<'lua>, _: &'lua Lua) -> Result<Self> {
+        let ty = value.type_name();
+        serde_json::to_value(value).map_err(|e| Error::FromLuaConversionError {
+            from: ty,
+            to: "serde_json::Value",
+            message: Some(format!("{}", e)),
+        })
+    }
+}
+
 #[cfg(test)]
 mod assertions {
     use super::*;