diff --git a/css/properties/reading-flow.json b/css/properties/reading-flow.json
new file mode 100644
index 00000000000000..871285945e14eb
--- /dev/null
+++ b/css/properties/reading-flow.json
@@ -0,0 +1,47 @@
+{
+  "css": {
+    "properties": {
+      "reading-flow": {
+        "__compat": {
+          "spec_url": "https://drafts.csswg.org/css-display-4/#reading-flow",
+          "support": {
+            "chrome": {
+              "version_added": "128",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "layout.css.reading-flow.enabled",
+                  "value_to_set": "true"
+                }
+              ],
+              "impl_url": "https://crbug.com/40932006"
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      }
+    }
+  }
+}