diff --git a/Cargo.lock b/Cargo.lock
index 0c3adad..2129e4a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -198,6 +198,7 @@ dependencies = [
  "json5",
  "serde",
  "serde_json",
+ "serde_yaml",
 ]
 
 [[package]]
@@ -335,6 +336,19 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "serde_yaml"
+version = "0.9.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "79b7c9017c64a49806c6e8df8ef99b92446d09c92457f85f91835b01a8064ae0"
+dependencies = [
+ "indexmap",
+ "itoa",
+ "ryu",
+ "serde",
+ "unsafe-libyaml",
+]
+
 [[package]]
 name = "sha-1"
 version = "0.10.0"
@@ -416,6 +430,12 @@ version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "15c61ba63f9235225a22310255a29b806b907c9b8c964bcbd0a2c70f3f2deea7"
 
+[[package]]
+name = "unsafe-libyaml"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "931179334a56395bcf64ba5e0ff56781381c1a5832178280c7d7f91d1679aeb0"
+
 [[package]]
 name = "version_check"
 version = "0.9.4"
diff --git a/Cargo.toml b/Cargo.toml
index c31388b..acb6e48 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -9,5 +9,6 @@ edition = "2021"
 serde = { version = "1.0", features = ["derive"] }
 json5 = "0.4.1"
 serde_json = "1.0"
+serde_yaml = "0.9"
 clap = { version = "3.2", features = ["derive"] }
-colored = "2"
\ No newline at end of file
+colored = "2"
diff --git a/src/interpreter.rs b/src/interpreter.rs
index 46e357a..5b9f0d8 100644
--- a/src/interpreter.rs
+++ b/src/interpreter.rs
@@ -20,8 +20,16 @@ impl Interpreter {
     }
 
     pub fn run(&mut self) {
-        let obj = json5::from_str::<Value>(&self.input).expect("Your json is invalid!");
-        let arr = obj.as_array().expect("Json must be an array!");
+        let obj: serde_json::Value = json5::from_str::<Value>(&self.input).unwrap_or_else(|_| {
+            serde_yaml::from_str(&self.input)
+                .expect("Your file format is invalid! (supported: json, json5 or yaml)")
+        });
+        let arr = obj.as_array().unwrap_or_else(|| {
+            obj.get("main")
+                .expect("Each program must contain a `{main: [..commands]}` object or be a command array ([..commands])")
+                .as_array()
+                .expect("The program must be an array of commands")
+        });
 
         for command in arr {
             self.eval_node(command);