diff --git a/Cargo.lock b/Cargo.lock
index cdf431d..af6ffdd 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -476,6 +476,7 @@ dependencies = [
  "base32",
  "criterion",
  "rand",
+ "serde",
  "test-case",
  "thiserror",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index 8dc34f8..28d2830 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -20,6 +20,7 @@ bench = false
 
 [dependencies]
 thiserror = "2.0.18"
+serde = { version = "1.0", optional = true }
 
 [dev-dependencies]
 test-case = "3.3.1"
diff --git a/src/lib.rs b/src/lib.rs
index ae40890..44bbd01 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -28,6 +28,9 @@
 mod plc_codec;
 mod web_domain;
 
+#[cfg(feature = "serde")]
+mod serde;
+
 use std::{
     cmp::Ordering,
     fmt::{Debug, Display, Formatter},
diff --git a/src/serde.rs b/src/serde.rs
new file mode 100644
index 0000000..3cb8fd5
--- /dev/null
+++ b/src/serde.rs
@@ -0,0 +1,43 @@
+use std::{fmt::Formatter, str::FromStr};
+
+use serde::{
+    de::{Deserialize, Deserializer, Error, Visitor},
+    ser::{Serialize, Serializer},
+};
+
+use crate::Did;
+
+impl<'de> Deserialize<'de> for Did {
+    fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
+    where
+        D: Deserializer<'de>,
+    {
+        deserializer.deserialize_str(DidVisitor)
+    }
+}
+
+struct DidVisitor;
+
+impl<'de> Visitor<'de> for DidVisitor {
+    type Value = Did;
+
+    fn expecting(&self, formatter: &mut Formatter) -> std::fmt::Result {
+        formatter.write_str("DID string")
+    }
+
+    fn visit_str<E>(self, value: &str) -> Result<Self::Value, E>
+    where
+        E: Error,
+    {
+        Did::from_str(value).map_err(Error::custom)
+    }
+}
+
+impl Serialize for Did {
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+    where
+        S: Serializer,
+    {
+        serializer.serialize_str(&self.to_string())
+    }
+}