diff --git a/prune/.gitignore b/prune/.gitignore
new file mode 100644
index 0000000..f2f9e58
--- /dev/null
+++ b/prune/.gitignore
@@ -0,0 +1,2 @@
+target
+Cargo.lock
\ No newline at end of file
diff --git a/prune/Cargo.toml b/prune/Cargo.toml
new file mode 100644
index 0000000..5270544
--- /dev/null
+++ b/prune/Cargo.toml
@@ -0,0 +1,9 @@
+[package]
+name = "wasm-opt"
+version = "0.1.0"
+authors = ["NikVolf <nikvolf@gmail.com>"]
+
+[dependencies]
+parity-wasm = "0.12"
+wasm-utils = { path = "../" }
+clap = "2.24"
diff --git a/prune/src/main.rs b/prune/src/main.rs
new file mode 100644
index 0000000..6175ad9
--- /dev/null
+++ b/prune/src/main.rs
@@ -0,0 +1,44 @@
+extern crate parity_wasm;
+extern crate wasm_utils;
+extern crate clap;
+
+use clap::{App, Arg};
+
+fn main() {
+    wasm_utils::init_log();
+
+    let matches = App::new("wasm-opt")
+                        .arg(Arg::with_name("input")
+                            .index(1)
+                            .required(true)
+                            .help("Input WASM file"))
+                        .arg(Arg::with_name("output")
+                            .index(2)
+                            .required(true)
+                            .help("Output WASM file"))
+                        .arg(Arg::with_name("exports")
+                            .long("exports")
+                            .short("e")
+                            .takes_value(true)
+                            .value_name("functions")
+                            .help("Comma-separated list of exported functions to keep. Default: _call"))
+                        .get_matches();
+
+    let exports = matches
+                    .value_of("exports")
+                    .unwrap_or("_call")
+                    .split(',')
+                    .collect();
+
+    let input = matches.value_of("input").expect("is required; qed");
+    let output = matches.value_of("output").expect("is required; qed");
+
+    let mut module = parity_wasm::deserialize_file(&input).unwrap();
+
+    // Invoke optimizer
+    //   Contract is supposed to have only these functions as public api
+    //   All other symbols not usable by this list is optimized away
+    wasm_utils::optimize(&mut module, exports).expect("Optimizer to finish without errors");
+
+    parity_wasm::serialize_to_file(&output, module).unwrap();
+}