diff --git a/scripts/lint.ts b/scripts/lint.ts
new file mode 100644
index 000000000..f1e67ec68
--- /dev/null
+++ b/scripts/lint.ts
@@ -0,0 +1,30 @@
+
+/*
+ * This script reads all theme and layer files and reformats them inplace
+ * Use with caution, make a commit beforehand!
+ */
+
+
+import ScriptUtils from "./ScriptUtils";
+import {readFileSync, writeFileSync} from "fs";
+import {tag} from "@turf/turf";
+
+const layerFiles = ScriptUtils.getLayerFiles();
+for (const layerFile of layerFiles) {
+    console.log("Handling ", layerFile.path)
+
+    for (const tagRendering of layerFile.parsed.tagRenderings) {
+        if(tagRendering["#"] !== undefined){
+            tagRendering["id"] = tagRendering["#"]
+            delete tagRendering["#"]
+        }
+        if(tagRendering["id"] === undefined){
+            if(tagRendering["freeform"]?.key !== undefined ) {
+                tagRendering["id"] = layerFile.parsed.id+"-"+tagRendering["freeform"]["key"]
+            }
+        }
+    }
+    
+    
+    writeFileSync(layerFile.path, JSON.stringify(layerFile.parsed, null, "    "))
+}
\ No newline at end of file