diff --git a/packages/shared/utils/headers.ts b/packages/shared/utils/headers.ts
index 1afd7cbf8b..e87e2f2bef 100644
--- a/packages/shared/utils/headers.ts
+++ b/packages/shared/utils/headers.ts
@@ -4,165 +4,3 @@ export const defaultAppHeaders = () => {
     'X-Title': 'Cherry Studio'
   }
 }
-
-// Following two function are not being used for now.
-// I may use them in the future, so just keep them commented. - by eurfelux
-
-/**
- * Converts an `undefined` value to `null`, otherwise returns the value as-is.
- * @param value - The value to check
- * @returns `null` if the input is `undefined`; otherwise the input value
- */
-
-// export function toNullIfUndefined<T>(value: T | undefined): T | null {
-//   if (value === undefined) {
-//     return null
-//   } else {
-//     return value
-//   }
-// }
-
-/**
- * Converts a `null` value to `undefined`, otherwise returns the value as-is.
- * @param value - The value to check
- * @returns `undefined` if the input is `null`; otherwise the input value
- */
-
-// export function toUndefinedIfNull<T>(value: T | null): T | undefined {
-//   if (value === null) {
-//     return undefined
-//   } else {
-//     return value
-//   }
-// }
-
-/**
- * Extracts the trailing API version segment from a URL path.
- *
- * This function extracts API version patterns (e.g., `v1`, `v2beta`) from the end of a URL.
- * Only versions at the end of the path are extracted, not versions in the middle.
- * The returned version string does not include leading or trailing slashes.
- *
- * @param {string} url - The URL string to parse.
- * @returns {string | undefined} The trailing API version found (e.g., 'v1', 'v2beta'), or undefined if none found.
- *
- * @example
- * getTrailingApiVersion('https://api.example.com/v1') // 'v1'
- * getTrailingApiVersion('https://api.example.com/v2beta/') // 'v2beta'
- * getTrailingApiVersion('https://api.example.com/v1/chat') // undefined (version not at end)
- * getTrailingApiVersion('https://gateway.ai.cloudflare.com/v1/xxx/v1beta') // 'v1beta'
- * getTrailingApiVersion('https://api.example.com') // undefined
- */
-export function getTrailingApiVersion(url: string): string | undefined {
-  const match = url.match(TRAILING_VERSION_REGEX)
-
-  if (match) {
-    // Extract version without leading slash and trailing slash
-    return match[0].replace(/^\//, '').replace(/\/$/, '')
-  }
-
-  return undefined
-}
-
-/**
- * Matches an API version at the end of a URL (with optional trailing slash).
- * Used to detect and extract versions only from the trailing position.
- */
-const TRAILING_VERSION_REGEX = /\/v\d+(?:alpha|beta)?\/?$/i
-
-/**
- * Removes the trailing API version segment from a URL path.
- *
- * This function removes API version patterns (e.g., `/v1`, `/v2beta`) from the end of a URL.
- * Only versions at the end of the path are removed, not versions in the middle.
- *
- * @param {string} url - The URL string to process.
- * @returns {string} The URL with the trailing API version removed, or the original URL if no trailing version found.
- *
- * @example
- * withoutTrailingApiVersion('https://api.example.com/v1') // 'https://api.example.com'
- * withoutTrailingApiVersion('https://api.example.com/v2beta/') // 'https://api.example.com'
- * withoutTrailingApiVersion('https://api.example.com/v1/chat') // 'https://api.example.com/v1/chat' (no change)
- * withoutTrailingApiVersion('https://api.example.com') // 'https://api.example.com'
- */
-export function withoutTrailingApiVersion(url: string): string {
-  return url.replace(TRAILING_VERSION_REGEX, '')
-}
-
-export interface DataUrlParts {
-  /** The media type (e.g., 'image/png', 'text/plain') */
-  mediaType?: string
-  /** Whether the data is base64 encoded */
-  isBase64: boolean
-  /** The data portion (everything after the comma). This is the raw string, not decoded. */
-  data: string
-}
-
-/**
- * Parses a data URL into its component parts without using regex on the data portion.
- * This is memory-safe for large data URLs (e.g., 4K images) as it uses indexOf instead of regex.
- *
- * Data URL format: data:[<mediatype>][;base64],<data>
- *
- * @param url - The data URL string to parse
- * @returns DataUrlParts if valid, null if invalid
- *
- * @example
- * parseDataUrl('data:image/png;base64,iVBORw0KGgo...')
- * // { mediaType: 'image/png', isBase64: true, data: 'iVBORw0KGgo...' }
- *
- * parseDataUrl('data:text/plain,Hello')
- * // { mediaType: 'text/plain', isBase64: false, data: 'Hello' }
- *
- * parseDataUrl('invalid-url')
- * // null
- */
-export function parseDataUrl(url: string): DataUrlParts | null {
-  if (!url.startsWith('data:')) {
-    return null
-  }
-
-  const commaIndex = url.indexOf(',')
-  if (commaIndex === -1) {
-    return null
-  }
-
-  const header = url.slice(5, commaIndex)
-
-  const isBase64 = header.includes(';base64')
-
-  const semicolonIndex = header.indexOf(';')
-  const mediaType = (semicolonIndex === -1 ? header : header.slice(0, semicolonIndex)).trim() || undefined
-
-  const data = url.slice(commaIndex + 1)
-
-  return { mediaType, isBase64, data }
-}
-
-/**
- * Checks if a string is a data URL.
- *
- * @param url - The string to check
- * @returns true if the string is a valid data URL
- */
-export function isDataUrl(url: string): boolean {
-  return url.startsWith('data:') && url.includes(',')
-}
-
-/**
- * Checks if a data URL contains base64-encoded image data.
- *
- * @param url - The data URL to check
- * @returns true if the URL is a base64-encoded image data URL
- */
-export function isBase64ImageDataUrl(url: string): boolean {
-  if (!url.startsWith('data:image/')) {
-    return false
-  }
-  const commaIndex = url.indexOf(',')
-  if (commaIndex === -1) {
-    return false
-  }
-  const header = url.slice(5, commaIndex)
-  return header.includes(';base64')
-}
diff --git a/packages/shared/utils/index.ts b/packages/shared/utils/index.ts
index 754acd8819..11cefe0c9b 100644
--- a/packages/shared/utils/index.ts
+++ b/packages/shared/utils/index.ts
@@ -1,3 +1,3 @@
-export { defaultAppHeaders, isBase64ImageDataUrl, isDataUrl, parseDataUrl } from './headers'
+export { defaultAppHeaders } from './headers'
 export { getBaseModelName, getLowerBaseModelName } from './naming'
 export * from './url'
diff --git a/packages/shared/utils/url.ts b/packages/shared/utils/url.ts
index 693fbc5679..608be4c1b5 100644
--- a/packages/shared/utils/url.ts
+++ b/packages/shared/utils/url.ts
@@ -291,3 +291,81 @@ export function getTrailingApiVersion(url: string): string | undefined {
 export function withoutTrailingApiVersion(url: string): string {
   return url.replace(TRAILING_VERSION_REGEX, '')
 }
+
+export interface DataUrlParts {
+  /** The media type (e.g., 'image/png', 'text/plain') */
+  mediaType?: string
+  /** Whether the data is base64 encoded */
+  isBase64: boolean
+  /** The data portion (everything after the comma). This is the raw string, not decoded. */
+  data: string
+}
+
+/**
+ * Parses a data URL into its component parts without using regex on the data portion.
+ * This is memory-safe for large data URLs (e.g., 4K images) as it uses indexOf instead of regex.
+ *
+ * Data URL format: data:[<mediatype>][;base64],<data>
+ *
+ * @param url - The data URL string to parse
+ * @returns DataUrlParts if valid, null if invalid
+ *
+ * @example
+ * parseDataUrl('data:image/png;base64,iVBORw0KGgo...')
+ * // { mediaType: 'image/png', isBase64: true, data: 'iVBORw0KGgo...' }
+ *
+ * parseDataUrl('data:text/plain,Hello')
+ * // { mediaType: 'text/plain', isBase64: false, data: 'Hello' }
+ *
+ * parseDataUrl('invalid-url')
+ * // null
+ */
+export function parseDataUrl(url: string): DataUrlParts | null {
+  if (!url.startsWith('data:')) {
+    return null
+  }
+
+  const commaIndex = url.indexOf(',')
+  if (commaIndex === -1) {
+    return null
+  }
+
+  const header = url.slice(5, commaIndex)
+
+  const isBase64 = header.includes(';base64')
+
+  const semicolonIndex = header.indexOf(';')
+  const mediaType = (semicolonIndex === -1 ? header : header.slice(0, semicolonIndex)).trim() || undefined
+
+  const data = url.slice(commaIndex + 1)
+
+  return { mediaType, isBase64, data }
+}
+
+/**
+ * Checks if a string is a data URL.
+ *
+ * @param url - The string to check
+ * @returns true if the string is a valid data URL
+ */
+export function isDataUrl(url: string): boolean {
+  return url.startsWith('data:') && url.includes(',')
+}
+
+/**
+ * Checks if a data URL contains base64-encoded image data.
+ *
+ * @param url - The data URL to check
+ * @returns true if the URL is a base64-encoded image data URL
+ */
+export function isBase64ImageDataUrl(url: string): boolean {
+  if (!url.startsWith('data:image/')) {
+    return false
+  }
+  const commaIndex = url.indexOf(',')
+  if (commaIndex === -1) {
+    return false
+  }
+  const header = url.slice(5, commaIndex)
+  return header.includes(';base64')
+}