diff --git a/README.md b/README.md
index 50c2004..1e2c281 100644
--- a/README.md
+++ b/README.md
@@ -165,7 +165,8 @@ You can universally customize IPX configuration using `IPX_*` environment variab
 | flop           | [Docs](https://sharp.pixelplumbing.com/api-operation#flop)      | `/flop/buffalo.png`                                  |
 | sharpen        | [Docs](https://sharp.pixelplumbing.com/api-operation#sharpen)   | `/sharpen_30/buffalo.png`                            |
 | median         | [Docs](https://sharp.pixelplumbing.com/api-operation#median)    | `/median_10/buffalo.png`                             |
-| blur           | [Docs](https://sharp.pixelplumbing.com/api-operation#blur)      | `/blur_5/buffalo.png`                                |
+| blur           | [Docs](https://sharp.pixelplumbing.com/api-operation#blur)      | `/blur_5/buffalo.png`
+| unflatten      | [Docs](https://sharp.pixelplumbing.com/api-operation#unflatten) | `/unflatten/buffalo.png`                             |                                |
 | gamma          | [Docs](https://sharp.pixelplumbing.com/api-operation#gamma)     | `/gamma_3/buffalo.png`                               |
 | negate         | [Docs](https://sharp.pixelplumbing.com/api-operation#negate)    | `/negate/buffalo.png`                                |
 | normalize      | [Docs](https://sharp.pixelplumbing.com/api-operation#normalize) | `/normalize/buffalo.png`                             |
diff --git a/src/handlers/handlers.ts b/src/handlers/handlers.ts
index 85fe237..3cfb61f 100644
--- a/src/handlers/handlers.ts
+++ b/src/handlers/handlers.ts
@@ -209,6 +209,15 @@ export const flatten: Handler = {
   },
 };
 
+// https://sharp.pixelplumbing.com/api-operation#unflatten
+// This feature is experimental and the API may change.
+export const unflatten: Handler = {
+  args: [],
+  apply: (_context, pipe) => {
+    return pipe.unflatten();
+  },
+};
+
 // https://sharp.pixelplumbing.com/api-operation#gamma
 export const gamma: Handler = {
   args: [VArgument, VArgument, VArgument],