diff --git a/moshi/src/main/java/com/squareup/moshi/JsonAdapter.java b/moshi/src/main/java/com/squareup/moshi/JsonAdapter.java
index ace81ba..0f40303 100644
--- a/moshi/src/main/java/com/squareup/moshi/JsonAdapter.java
+++ b/moshi/src/main/java/com/squareup/moshi/JsonAdapter.java
@@ -54,6 +54,35 @@ public abstract class JsonAdapter<T> {
     return buffer.readUtf8();
   }
 
+  /**
+   * Encodes {@code value} as a Java model comprised of maps, lists, strings, numbers, booleans
+   * and nulls. The returned model is equivalent to calling {@link #toJson} to encode {@code value}
+   * as a JSON string, and then parsing that string without any particular type.
+   */
+  public final Object toJsonObject(T value) {
+    ObjectJsonWriter writer = new ObjectJsonWriter();
+    try {
+      toJson(writer, value);
+      return writer.root();
+    } catch (IOException e) {
+      throw new AssertionError(e); // No I/O writing to an object.
+    }
+  }
+
+  /**
+   * Decodes a Java value from {@code object}, which must be a Java model comprised of maps, lists,
+   * strings, numbers, booleans and nulls. This is equivalent to encoding {@code object} to a JSON
+   * string, and then calling {@link #fromJson} to decode that string.
+   */
+  public final T fromJsonObject(Object object) {
+    ObjectJsonReader reader = new ObjectJsonReader(object);
+    try {
+      return fromJson(reader);
+    } catch (IOException e) {
+      throw new AssertionError(e); // No I/O reading from an object.
+    }
+  }
+
   /**
    * Returns a JSON adapter equal to this JSON adapter, but with support for reading and writing
    * nulls.
diff --git a/moshi/src/test/java/com/squareup/moshi/MoshiTest.java b/moshi/src/test/java/com/squareup/moshi/MoshiTest.java
index cb0169c..5fece58 100644
--- a/moshi/src/test/java/com/squareup/moshi/MoshiTest.java
+++ b/moshi/src/test/java/com/squareup/moshi/MoshiTest.java
@@ -601,6 +601,36 @@ public final class MoshiTest {
         .isEqualTo(new Pizza(18, true));
   }
 
+  @Test public void classAdapterToObjectAndFromObject() throws Exception {
+    Moshi moshi = new Moshi.Builder().build();
+
+    Pizza pizza = new Pizza(15, true);
+
+    Map<String, Object> pizzaObject = new LinkedHashMap<>();
+    pizzaObject.put("diameter", 15L);
+    pizzaObject.put("extraCheese", true);
+
+    JsonAdapter<Pizza> jsonAdapter = moshi.adapter(Pizza.class);
+    assertThat(jsonAdapter.toJsonObject(pizza)).isEqualTo(pizzaObject);
+    assertThat(jsonAdapter.fromJsonObject(pizzaObject)).isEqualTo(pizza);
+  }
+
+  @Test public void customJsonAdapterToObjectAndFromObject() throws Exception {
+    Moshi moshi = new Moshi.Builder()
+        .add(Pizza.class, new PizzaAdapter())
+        .build();
+
+    Pizza pizza = new Pizza(15, true);
+
+    Map<String, Object> pizzaObject = new LinkedHashMap<>();
+    pizzaObject.put("size", 15L);
+    pizzaObject.put("extra cheese", true);
+
+    JsonAdapter<Pizza> jsonAdapter = moshi.adapter(Pizza.class);
+    assertThat(jsonAdapter.toJsonObject(pizza)).isEqualTo(pizzaObject);
+    assertThat(jsonAdapter.fromJsonObject(pizzaObject)).isEqualTo(pizza);
+  }
+
   @Test public void indent() throws Exception {
     Moshi moshi = new Moshi.Builder().add(Pizza.class, new PizzaAdapter()).build();
     JsonAdapter<Pizza> jsonAdapter = moshi.adapter(Pizza.class);