diff --git a/.changeset/two-rice-end.md b/.changeset/two-rice-end.md
new file mode 100644
index 000000000..12eb54a76
--- /dev/null
+++ b/.changeset/two-rice-end.md
@@ -0,0 +1,5 @@
+---
+'@sveltejs/vite-plugin-svelte': patch
+---
+
+Export loadSvelteConfig
diff --git a/packages/vite-plugin-svelte/src/index.ts b/packages/vite-plugin-svelte/src/index.ts
index 19fd7cfa3..09f8eb717 100644
--- a/packages/vite-plugin-svelte/src/index.ts
+++ b/packages/vite-plugin-svelte/src/index.ts
@@ -218,6 +218,8 @@ export function svelte(inlineOptions?: Partial<Options>): Plugin[] {
 	return plugins.filter(Boolean);
 }
 
+export { loadSvelteConfig } from './utils/load-svelte-config';
+
 export {
 	Options,
 	Preprocessor,
diff --git a/packages/vite-plugin-svelte/src/utils/load-svelte-config.ts b/packages/vite-plugin-svelte/src/utils/load-svelte-config.ts
index 88c0cdb31..fba205b74 100644
--- a/packages/vite-plugin-svelte/src/utils/load-svelte-config.ts
+++ b/packages/vite-plugin-svelte/src/utils/load-svelte-config.ts
@@ -27,8 +27,8 @@ const dynamicImportDefault = new Function(
 );
 
 export async function loadSvelteConfig(
-	viteConfig: UserConfig,
-	inlineOptions: Partial<Options>
+	viteConfig?: UserConfig,
+	inlineOptions?: Partial<Options>
 ): Promise<Partial<Options> | undefined> {
 	if (inlineOptions.configFile === false) {
 		return;
@@ -87,9 +87,9 @@ export async function loadSvelteConfig(
 	}
 }
 
-function findConfigToLoad(viteConfig: UserConfig, inlineOptions: Partial<Options>) {
-	const root = viteConfig.root || process.cwd();
-	if (inlineOptions.configFile) {
+function findConfigToLoad(viteConfig?: UserConfig, inlineOptions?: Partial<Options>) {
+	const root = viteConfig?.root || process.cwd();
+	if (inlineOptions?.configFile) {
 		const abolutePath = path.isAbsolute(inlineOptions.configFile)
 			? inlineOptions.configFile
 			: path.resolve(root, inlineOptions.configFile);