diff --git a/TS.fsx b/TS.fsx
index 30d392fd6..75789ee1c 100644
--- a/TS.fsx
+++ b/TS.fsx
@@ -144,8 +144,19 @@ module InputIdlJson =
     type InputIdlJsonType = JsonProvider<"inputfiles/sample.webidl.json">
 
     let inputIdl =
-        File.ReadAllText(GlobalVars.inputFolder + @"/browser.webidl.json") |> InputIdlJsonType.Parse
-
+        let jsons = 
+            DirectoryInfo(GlobalVars.inputFolder + @"/idls").GetFiles()
+            |> Array.map (fun file -> file.FullName |> File.ReadAllText |> InputIdlJsonType.Parse)
+
+        let inline extractJsonArray f =
+            jsons |> Array.collect f |> Array.map (fun item -> (^a: (member JsonValue: JsonValue) item)) |> JsonValue.Array;
+
+        let list = [| ("callbackFunctions", extractJsonArray (fun json -> json.CallbackFunctions));
+                      ("interfaces", extractJsonArray (fun json -> json.Interfaces));
+                      ("dictionaries", extractJsonArray (fun json -> json.Dictionaries));
+                      ("typedefs", extractJsonArray (fun json -> json.Typedefs)) |]
+        InputIdlJsonType.Root(JsonValue.Record list)
+    
     let allCallbackFunctionsMap =
         inputIdl.CallbackFunctions |> toNameMap
 
diff --git a/inputfiles/idls/Encoding.webidl.json b/inputfiles/idls/Encoding.webidl.json
new file mode 100644
index 000000000..f573fd6b2
--- /dev/null
+++ b/inputfiles/idls/Encoding.webidl.json
@@ -0,0 +1,44 @@
+{
+  "callbackFunctions": [], "callbackInterfaces": [], "enums": [], "typedefs": [], "namespaces": [],
+  "dictionaries": [{
+    "name": "TextDecodeOptions",
+    "members": [{ "name": "stream", "type": "boolean", "default": "false" }]
+  }, {
+    "name": "TextDecoderOptions",
+    "members": [
+      { "name": "fatal", "type": "boolean", "default": "false" },
+      { "name": "ignoreBOM", "type": "boolean", "default": "false" }
+    ]
+  }],
+  "interfaces": [{
+    "name": "TextDecoder",
+    "constructors": [{
+      "arguments": [
+        { "name": "label", "type": "DOMString", "optional": true, "default": "\"utf-8\"" },
+        { "name": "options", "type": "TextDecoderOptions", "optional": true }
+      ]
+    }],
+    "exposed": ["Window", "Worker"],
+    "operations": [{
+      "name": "decode", "type": "USVString",
+      "arguments": [
+        { "name": "input", "type": "BufferSource", "optional": true },
+        { "name": "options", "type": "TextDecodeOptions", "optional": true }
+      ]
+    }],
+    "attributes": [
+      { "name": "encoding", "type": "DOMString", "readonly": true },
+      { "name": "fatal", "type": "boolean", "readonly": true },
+      { "name": "ignoreBOM", "type": "boolean", "readonly": true }
+    ]
+  }, {
+    "name": "TextEncoder",
+    "constructors": [{ "arguments": [] }],
+    "exposed": ["Window", "Worker"],
+    "operations": [{
+      "name": "encode", "type": "Uint8Array",
+      "arguments": [{ "name": "input", "type": "USVString", "optional": true, "default": "\"\"" }]
+    }],
+    "attributes": [{ "name": "encoding", "type": "DOMString", "readonly": true }]
+  }]
+}
\ No newline at end of file
diff --git a/inputfiles/browser.webidl.json b/inputfiles/idls/Web IDL.webidl.json
similarity index 67%
rename from inputfiles/browser.webidl.json
rename to inputfiles/idls/Web IDL.webidl.json
index c20d4c4c2..b64646e35 100644
--- a/inputfiles/browser.webidl.json
+++ b/inputfiles/idls/Web IDL.webidl.json	
@@ -1,5 +1,5 @@
 {
-  "callbackInterfaces": [], "enums": [], "namespaces": [],
+  "callbackInterfaces": [], "dictionaries": [], "enums": [], "namespaces": [],
   "callbackFunctions": [
     {
       "name": "Function", "type": "any",
@@ -7,16 +7,6 @@
     },
     { "name": "VoidFunction", "type": "void", "arguments": [] }
   ],
-  "dictionaries": [{
-    "name": "TextDecodeOptions",
-    "members": [{ "name": "stream", "type": "boolean", "default": "false" }]
-  }, {
-    "name": "TextDecoderOptions",
-    "members": [
-      { "name": "fatal", "type": "boolean", "default": "false" },
-      { "name": "ignoreBOM", "type": "boolean", "default": "false" }
-    ]
-  }],
   "interfaces": [{
     "name": "DOMException",
     "exposed": ["Window", "Worker"],
@@ -58,36 +48,6 @@
       { "name": "message", "type": "DOMString", "readonly": true },
       { "name": "name", "type": "DOMString", "readonly": true }
     ]
-  }, {
-    "name": "TextDecoder",
-    "constructors": [{
-      "arguments": [
-        { "name": "label", "type": "DOMString", "optional": true, "default": "\"utf-8\"" },
-        { "name": "options", "type": "TextDecoderOptions", "optional": true }
-      ]
-    }],
-    "exposed": ["Window", "Worker"],
-    "operations": [{
-      "name": "decode", "type": "USVString",
-      "arguments": [
-        { "name": "input", "type": "BufferSource", "optional": true },
-        { "name": "options", "type": "TextDecodeOptions", "optional": true }
-      ]
-    }],
-    "attributes": [
-      { "name": "encoding", "type": "DOMString", "readonly": true },
-      { "name": "fatal", "type": "boolean", "readonly": true },
-      { "name": "ignoreBOM", "type": "boolean", "readonly": true }
-    ]
-  }, {
-    "name": "TextEncoder",
-    "constructors": [{ "arguments": [] }],
-    "exposed": ["Window", "Worker"],
-    "operations": [{
-      "name": "encode", "type": "Uint8Array",
-      "arguments": [{ "name": "input", "type": "USVString", "optional": true, "default": "\"\"" }]
-    }],
-    "attributes": [{ "name": "encoding", "type": "DOMString", "readonly": true }]
   }],
   "typedefs": [
     { "name": "ArrayBufferView", "type": "(Int8Array or Int16Array or Int32Array or Uint8Array or Uint16Array or Uint32Array or Uint8ClampedArray or Float32Array or Float64Array or DataView)" },