diff --git a/.changeset/small-scissors-accept.md b/.changeset/small-scissors-accept.md
new file mode 100644
index 000000000..f6f0a638e
--- /dev/null
+++ b/.changeset/small-scissors-accept.md
@@ -0,0 +1,5 @@
+---
+"svelte-ux": patch
+---
+
+Add `isEmptyObject()` util
diff --git a/packages/svelte-ux/src/lib/utils/object.ts b/packages/svelte-ux/src/lib/utils/object.ts
index 03b3cb588..d34188a85 100644
--- a/packages/svelte-ux/src/lib/utils/object.ts
+++ b/packages/svelte-ux/src/lib/utils/object.ts
@@ -5,6 +5,10 @@ export function isLiteralObject(obj: any): obj is object {
   return obj && typeof obj === 'object' && obj.constructor === Object;
 }
 
+export function isEmptyObject(obj: any) {
+  return isLiteralObject(obj) && Object.keys(obj).length === 0;
+}
+
 export function camelCaseKeys(obj: any) {
   return Object.keys(obj).reduce((acc, key) => ((acc[camelCase(key)] = obj[key]), acc), {} as any);
 }
@@ -123,7 +127,7 @@ export function expireObject<TObject extends object>(
           expireObject(value, propExpiry);
 
           // Remove property if empty object (all properties removed)
-          if (isLiteralObject(value) && Object.keys(value).length === 0) {
+          if (isEmptyObject(value)) {
             delete object[prop as keyof TObject];
           }
         }
@@ -131,7 +135,7 @@ export function expireObject<TObject extends object>(
     }
   }
 
-  return isLiteralObject(object) && Object.keys(object).length === 0 ? null : object;
+  return isEmptyObject(object) ? null : object;
 }
 
 /**
diff --git a/packages/svelte-ux/src/lib/utils/serialize.ts b/packages/svelte-ux/src/lib/utils/serialize.ts
index 43e205a69..30b18d0d3 100644
--- a/packages/svelte-ux/src/lib/utils/serialize.ts
+++ b/packages/svelte-ux/src/lib/utils/serialize.ts
@@ -1,4 +1,5 @@
 import { parse, reviver, stringify } from './json.js';
+import { isEmptyObject } from './object.js';
 
 // See: https://github.com/pbeshai/serialize-query-params/blob/master/src/serialize.ts
 
@@ -457,7 +458,7 @@ export function encodeObject(
   entrySeparator = '_'
 ): string | null | undefined {
   if (obj == null) return obj; // null or undefined
-  if (!Object.keys(obj).length) return ''; // {} case
+  if (isEmptyObject(obj)) return ''; // {} case
 
   return Object.keys(obj)
     .map((key) => {