diff --git a/apps/wallet/src/utils/url.ts b/apps/wallet/src/utils/url.ts
deleted file mode 100644
index 28bb876a..00000000
--- a/apps/wallet/src/utils/url.ts
+++ /dev/null
@@ -1,14 +0,0 @@
-export const objToQuery = <T extends object>(obj: T, delimiter: string = '&') => {
-  return Object.entries(obj)
-    .map(([key, value]) => `${key}=${encodeURIComponent(JSON.stringify(value))}`)
-    .join(delimiter)
-}
-
-export const queryToObj = <T extends object>(query: string, delimiter: string = '&') => {
-  return Object.fromEntries(
-    query
-      .split(delimiter)
-      .map((str) => str.split('='))
-      .map(([key, value]) => [key, JSON.parse(decodeURIComponent(value))])
-  ) as T
-}
diff --git a/apps/wallet/src/utils/url/index.test.ts b/apps/wallet/src/utils/url/index.test.ts
new file mode 100644
index 00000000..da27428b
--- /dev/null
+++ b/apps/wallet/src/utils/url/index.test.ts
@@ -0,0 +1,24 @@
+import { expect, test } from 'vitest'
+import { objToQuery, queryToObj } from '.'
+
+test('obj to query', () => {
+  const obj = {
+    a: 1,
+    c: '3',
+    e: ['5', '6'],
+    f: { g: 7, h: 8 },
+  }
+  expect(objToQuery(obj)).toBe(
+    'a=1&c=3&e=%5B%225%22%2C%226%22%5D&f=%7B%22g%22%3A7%2C%22h%22%3A8%7D'
+  )
+})
+
+test('query to obj', () => {
+  const query = 'a=1&c=3&e=%5B%225%22%2C%226%22%5D&f=%7B%22g%22%3A7%2C%22h%22%3A8%7D'
+  expect(queryToObj(query)).toStrictEqual({
+    a: '1',
+    c: '3',
+    e: ['5', '6'],
+    f: { g: 7, h: 8 },
+  })
+})
diff --git a/apps/wallet/src/utils/url/index.ts b/apps/wallet/src/utils/url/index.ts
new file mode 100644
index 00000000..b3eff690
--- /dev/null
+++ b/apps/wallet/src/utils/url/index.ts
@@ -0,0 +1,23 @@
+export const objToQuery = <T extends object>(obj: T, delimiter: string = '&') => {
+  return Object.entries(obj)
+    .map(([key, value]) => `${key}=${encodeURIComponent(typeof value === 'object' ? JSON.stringify(value) : String(value))}`)
+    .join(delimiter)
+}
+
+export const queryToObj = <T extends object>(query: string, delimiter: string = '&') => {
+  return Object.fromEntries(
+    query
+      .split(delimiter)
+      .map((str) => str.split('='))
+      .map(([key, value]) => {
+        let val = String(value)
+        try {
+          const parsed = JSON.parse(decodeURIComponent(value))
+          if (typeof parsed === 'object') {
+            val = parsed
+          }
+        } catch (e) {}
+        return [key, val]
+      })
+  ) as T
+}
diff --git a/apps/wallet/src/utils/vitest-example/sum.test.ts b/apps/wallet/src/utils/vitest-example/sum.test.ts
deleted file mode 100644
index bcae9458..00000000
--- a/apps/wallet/src/utils/vitest-example/sum.test.ts
+++ /dev/null
@@ -1,6 +0,0 @@
-import { expect, test } from 'vitest'
-import { sum } from './sum.js'
-
-test('adds 1 + 2 to equal 3', () => {
-  expect(sum(1, 2)).toBe(3)
-})
diff --git a/apps/wallet/src/utils/vitest-example/sum.ts b/apps/wallet/src/utils/vitest-example/sum.ts
deleted file mode 100644
index d889366d..00000000
--- a/apps/wallet/src/utils/vitest-example/sum.ts
+++ /dev/null
@@ -1,3 +0,0 @@
-export const sum = (a: number, b: number) => {
-  return a + b
-}