diff --git a/api/Profiler.json b/api/Profiler.json
new file mode 100644
index 00000000000000..b394c460aace56
--- /dev/null
+++ b/api/Profiler.json
@@ -0,0 +1,245 @@
+{
+  "api": {
+    "Profiler": {
+      "__compat": {
+        "spec_url": "https://wicg.github.io/js-self-profiling/#the-profiler-interface",
+        "support": {
+          "chrome": {
+            "version_added": "94"
+          },
+          "chrome_android": {
+            "version_added": "94"
+          },
+          "edge": {
+            "version_added": "94"
+          },
+          "firefox": {
+            "version_added": false
+          },
+          "firefox_android": {
+            "version_added": false
+          },
+          "ie": {
+            "version_added": false
+          },
+          "opera": {
+            "version_added": "80"
+          },
+          "opera_android": {
+            "version_added": false
+          },
+          "safari": {
+            "version_added": false
+          },
+          "safari_ios": {
+            "version_added": false
+          },
+          "samsunginternet_android": {
+            "version_added": false
+          },
+          "webview_android": {
+            "version_added": "94"
+          }
+        },
+        "status": {
+          "experimental": true,
+          "standard_track": true,
+          "deprecated": false
+        }
+      },
+      "Profiler": {
+        "__compat": {
+          "spec_url": "https://wicg.github.io/js-self-profiling/#dom-profiler-constructor",
+          "description": "<code>Profiler()</code> constructor",
+          "support": {
+            "chrome": {
+              "version_added": "94"
+            },
+            "chrome_android": {
+              "version_added": "94"
+            },
+            "edge": {
+              "version_added": "94"
+            },
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": {
+              "version_added": false
+            },
+            "ie": {
+              "version_added": false
+            },
+            "opera": {
+              "version_added": "80"
+            },
+            "opera_android": {
+              "version_added": false
+            },
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": {
+              "version_added": false
+            },
+            "samsunginternet_android": {
+              "version_added": false
+            },
+            "webview_android": {
+              "version_added": "94"
+            }
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "sampleInterval": {
+        "__compat": {
+          "spec_url": "https://wicg.github.io/js-self-profiling/#dom-profiler-sampleinterval",
+          "support": {
+            "chrome": {
+              "version_added": "94"
+            },
+            "chrome_android": {
+              "version_added": "94"
+            },
+            "edge": {
+              "version_added": "94"
+            },
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": {
+              "version_added": false
+            },
+            "ie": {
+              "version_added": false
+            },
+            "opera": {
+              "version_added": "80"
+            },
+            "opera_android": {
+              "version_added": false
+            },
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": {
+              "version_added": false
+            },
+            "samsunginternet_android": {
+              "version_added": false
+            },
+            "webview_android": {
+              "version_added": "94"
+            }
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "stop": {
+        "__compat": {
+          "spec_url": "https://wicg.github.io/js-self-profiling/#dom-profiler-stop",
+          "support": {
+            "chrome": {
+              "version_added": "94"
+            },
+            "chrome_android": {
+              "version_added": "94"
+            },
+            "edge": {
+              "version_added": "94"
+            },
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": {
+              "version_added": false
+            },
+            "ie": {
+              "version_added": false
+            },
+            "opera": {
+              "version_added": "80"
+            },
+            "opera_android": {
+              "version_added": false
+            },
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": {
+              "version_added": false
+            },
+            "samsunginternet_android": {
+              "version_added": false
+            },
+            "webview_android": {
+              "version_added": "94"
+            }
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "stopped": {
+        "__compat": {
+          "spec_url": "https://wicg.github.io/js-self-profiling/#dom-profiler-stopped",
+          "support": {
+            "chrome": {
+              "version_added": "94"
+            },
+            "chrome_android": {
+              "version_added": "94"
+            },
+            "edge": {
+              "version_added": "94"
+            },
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": {
+              "version_added": false
+            },
+            "ie": {
+              "version_added": false
+            },
+            "opera": {
+              "version_added": "80"
+            },
+            "opera_android": {
+              "version_added": false
+            },
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": {
+              "version_added": false
+            },
+            "samsunginternet_android": {
+              "version_added": false
+            },
+            "webview_android": {
+              "version_added": "94"
+            }
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      }
+    }
+  }
+}