diff --git a/README.md b/README.md
index 116cfdf..ce3384e 100644
--- a/README.md
+++ b/README.md
@@ -1,9 +1,9 @@
-**Code**: [![codecov](https://codecov.io/gh/zefiroproj/zefiro/graph/badge.svg?token=5DgmM1KzuQ)](https://codecov.io/gh/zefiroproj/zefiro)
+[![codecov](https://codecov.io/gh/zefiroproj/zefiro/graph/badge.svg?token=5DgmM1KzuQ)](https://codecov.io/gh/zefiroproj/zefiro)
 [![FOSSA Status](https://app.fossa.com/api/projects/git%2Bgithub.com%2Fzefiroproj%2Fzefiro.svg?type=shield)](https://app.fossa.com/projects/git%2Bgithub.com%2Fzefiroproj%2Fzefiro?ref=badge_shield)
 
 # Zefiro - fast, scalable and simple engine to manage workflows
 
 ⚠️ This project is a Work In Progress, and is very far from being suitable for use ⚠️
 
-## License
+## License Compliance
 [![FOSSA Status](https://app.fossa.com/api/projects/git%2Bgithub.com%2Fzefiroproj%2Fzefiro.svg?type=large)](https://app.fossa.com/projects/git%2Bgithub.com%2Fzefiroproj%2Fzefiro?ref=badge_large)
\ No newline at end of file
diff --git a/zefiro-core/zefiro-cwl/Cargo.toml b/zefiro-core/zefiro-cwl/Cargo.toml
index 4622bba..da6d86b 100644
--- a/zefiro-core/zefiro-cwl/Cargo.toml
+++ b/zefiro-core/zefiro-cwl/Cargo.toml
@@ -22,6 +22,7 @@ serde_json = "1.0.135"
 serde_with = "3.12.0"
 serde_yaml = "0.9.34"
 sha1 = "0.10.6"
+tera = "1.20.0"
 
 [dev-dependencies]
 rstest = "0.24.0"
diff --git a/zefiro-core/zefiro-cwl/src/exprs/mod.rs b/zefiro-core/zefiro-cwl/src/exprs/mod.rs
deleted file mode 100644
index 4b318ea..0000000
--- a/zefiro-core/zefiro-cwl/src/exprs/mod.rs
+++ /dev/null
@@ -1 +0,0 @@
-pub mod exec;
diff --git a/zefiro-core/zefiro-cwl/src/exprs/exec.rs b/zefiro-core/zefiro-cwl/src/js/execute.rs
similarity index 100%
rename from zefiro-core/zefiro-cwl/src/exprs/exec.rs
rename to zefiro-core/zefiro-cwl/src/js/execute.rs
diff --git a/zefiro-core/zefiro-cwl/src/js/mod.rs b/zefiro-core/zefiro-cwl/src/js/mod.rs
new file mode 100644
index 0000000..2e8bddd
--- /dev/null
+++ b/zefiro-core/zefiro-cwl/src/js/mod.rs
@@ -0,0 +1 @@
+pub mod execute;
diff --git a/zefiro-core/zefiro-cwl/src/lib.rs b/zefiro-core/zefiro-cwl/src/lib.rs
index 6b6e5ee..b6c5814 100644
--- a/zefiro-core/zefiro-cwl/src/lib.rs
+++ b/zefiro-core/zefiro-cwl/src/lib.rs
@@ -1,8 +1,10 @@
-pub mod exprs;
+pub mod js;
 #[doc = include_str!("../README.md")]
 pub mod schema;
+pub mod template;
 pub mod values;
 
-pub use crate::exprs::exec::JsExecutor;
+pub use crate::js::execute::JsExecutor;
 pub use crate::schema::document::CwlSchema;
+pub use crate::template::render::TemplateRender;
 pub use crate::values::document::CwlValues;
diff --git a/zefiro-core/zefiro-cwl/src/template/mod.rs b/zefiro-core/zefiro-cwl/src/template/mod.rs
new file mode 100644
index 0000000..cf25e6c
--- /dev/null
+++ b/zefiro-core/zefiro-cwl/src/template/mod.rs
@@ -0,0 +1 @@
+pub mod render;
diff --git a/zefiro-core/zefiro-cwl/src/template/render.rs b/zefiro-core/zefiro-cwl/src/template/render.rs
new file mode 100644
index 0000000..f7c3ece
--- /dev/null
+++ b/zefiro-core/zefiro-cwl/src/template/render.rs
@@ -0,0 +1,82 @@
+use anyhow::Error;
+use serde_json::Value;
+use tera::{Context, Tera};
+
+pub struct TemplateRender {
+    content: Value,
+    tera: Tera,
+}
+
+impl TemplateRender {
+    pub fn new(content: Value, template: &str) -> Result<Self, Error> {
+        let mut tera = Tera::default();
+        tera.add_raw_template("template", template)?;
+        Ok(Self { content, tera })
+    }
+
+    pub fn render(&self) -> Result<String, Error> {
+        let mut context = Context::new();
+        let object = self.content.as_object().ok_or_else(|| {
+            anyhow::anyhow!("Content must be a JSON object, got: {}", self.content)
+        })?;
+        for (key, value) in object {
+            context.insert(key, value);
+        }
+        let result = self.tera.render("template", &context)?;
+
+        Ok(result)
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use rstest::rstest;
+    use serde_json::json;
+
+    #[rstest]
+    #[case(
+        json!({"inputLocation": "s3://bucket"}),
+        r#"
+        input_file:
+            class: location
+            location: {{ inputLocation }}/dir/input.txt
+        "#,
+        r#"
+        input_file:
+            class: location
+            location: s3://bucket/dir/input.txt
+        "#,
+    )]
+    #[case(
+        json!({
+            "inputLocation": "s3://bucket",
+            "suffixes": [1, 2, 3]
+        }),
+        r#"
+        input_file:
+        {% for suffix in suffixes %}
+        - class: File
+          location: {{ inputLocation }}/dir/input-{{ suffix }}.txt
+        {% endfor %}
+        "#,
+        r#"
+        input_file:
+        
+        - class: File
+          location: s3://bucket/dir/input-1.txt
+        
+        - class: File
+          location: s3://bucket/dir/input-2.txt
+        
+        - class: File
+          location: s3://bucket/dir/input-3.txt
+        
+        "#,
+    )]
+    fn test_render(#[case] content: Value, #[case] template: &str, #[case] expected: &str) {
+        let template_render = TemplateRender::new(content.clone(), template).unwrap();
+        let rendered = template_render.render().unwrap();
+        assert_eq!(rendered, expected);
+    }
+}