diff --git a/src/main.rs b/src/main.rs
index 1eaafda..65df5bd 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -11,17 +11,26 @@ struct Args {
     /// The replacement pattern.
     #[arg(short, long)]
     replace: String,
+
+    /// The input content to search and replace. If not provided, input will be read from stdin.
+    #[arg(short, long)]
+    input: Option<String>,
 }
 
 fn main() {
     let args = Args::parse();
 
-    let mut input = String::new();
-    match std::io::stdin().read_to_string(&mut input) {
-        Ok(_) => (),
-        Err(err) => {
-            eprintln!("Error reading from stdin: {}", err);
-            return;
+    let input = match args.input {
+        Some(input) => input,
+        None => {
+            let mut input = String::new();
+            match std::io::stdin().read_to_string(&mut input) {
+                Ok(_) => input,
+                Err(err) => {
+                    eprintln!("Error reading from stdin: {}", err);
+                    return;
+                }
+            }
         }
     };