diff --git a/.changeset/pink-onions-ring.md b/.changeset/pink-onions-ring.md
new file mode 100644
index 0000000000..a845151cc8
--- /dev/null
+++ b/.changeset/pink-onions-ring.md
@@ -0,0 +1,2 @@
+---
+---
diff --git a/packages/react-router/package.json b/packages/react-router/package.json
index 2684e85f95..25a46923ff 100644
--- a/packages/react-router/package.json
+++ b/packages/react-router/package.json
@@ -68,7 +68,8 @@
     "lint": "eslint src/",
     "lint:attw": "attw --pack . --ignore-rules cjs-resolves-to-esm",
     "lint:publint": "publint",
-    "publish:local": "pnpm dlx yalc push --replace --sig"
+    "publish:local": "pnpm dlx yalc push --replace --sig",
+    "test": "vitest"
   },
   "dependencies": {
     "@clerk/backend": "workspace:^",
diff --git a/packages/react-router/src/__tests__/__snapshots__/exports.test.ts.snap b/packages/react-router/src/__tests__/__snapshots__/exports.test.ts.snap
new file mode 100644
index 0000000000..90b135b14a
--- /dev/null
+++ b/packages/react-router/src/__tests__/__snapshots__/exports.test.ts.snap
@@ -0,0 +1,50 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`root public exports > should not change unexpectedly 1`] = `
+[
+  "AuthenticateWithRedirectCallback",
+  "ClerkLoaded",
+  "ClerkLoading",
+  "ClerkProvider",
+  "CreateOrganization",
+  "GoogleOneTap",
+  "OrganizationList",
+  "OrganizationProfile",
+  "OrganizationSwitcher",
+  "Protect",
+  "RedirectToCreateOrganization",
+  "RedirectToOrganizationProfile",
+  "RedirectToSignIn",
+  "RedirectToSignUp",
+  "RedirectToUserProfile",
+  "SignIn",
+  "SignInButton",
+  "SignInWithMetamaskButton",
+  "SignOutButton",
+  "SignUp",
+  "SignUpButton",
+  "SignedIn",
+  "SignedOut",
+  "UserButton",
+  "UserProfile",
+  "Waitlist",
+  "useAuth",
+  "useClerk",
+  "useEmailLink",
+  "useOrganization",
+  "useOrganizationList",
+  "useReverification",
+  "useSession",
+  "useSessionList",
+  "useSignIn",
+  "useSignUp",
+  "useUser",
+]
+`;
+
+exports[`ssr public exports > should not change unexpectedly 1`] = `
+[
+  "getAuth",
+  "rootAuthLoader",
+]
+`;
diff --git a/packages/react-router/src/__tests__/exports.test.ts b/packages/react-router/src/__tests__/exports.test.ts
new file mode 100644
index 0000000000..4bba4ec227
--- /dev/null
+++ b/packages/react-router/src/__tests__/exports.test.ts
@@ -0,0 +1,14 @@
+import * as publicExports from '../index';
+import * as ssrExports from '../ssr/index';
+
+describe('root public exports', () => {
+  it('should not change unexpectedly', () => {
+    expect(Object.keys(publicExports).sort()).toMatchSnapshot();
+  });
+});
+
+describe('ssr public exports', () => {
+  it('should not change unexpectedly', () => {
+    expect(Object.keys(ssrExports).sort()).toMatchSnapshot();
+  });
+});
diff --git a/packages/react-router/src/utils/__tests__/assert.test.ts b/packages/react-router/src/utils/__tests__/assert.test.ts
new file mode 100644
index 0000000000..931f362299
--- /dev/null
+++ b/packages/react-router/src/utils/__tests__/assert.test.ts
@@ -0,0 +1,38 @@
+/* eslint-disable no-global-assign */
+import { isSpaMode } from '../assert';
+
+describe('isSpaMode', () => {
+  const currentWindow = window;
+
+  afterEach(() => {
+    window = currentWindow;
+  });
+
+  it('should return undefined when window is undefined', () => {
+    expect(isSpaMode()).toBeUndefined();
+  });
+
+  it('should return undefined when window.__reactRouterContext is undefined', () => {
+    // @ts-expect-error - Tests
+    window = { __reactRouterContext: undefined };
+    expect(isSpaMode()).toBeUndefined();
+  });
+
+  it('should return undefined when window.__reactRouterContext.isSpaMode is undefined', () => {
+    // @ts-expect-error - Tests
+    window = { __reactRouterContext: { isSpaMode: undefined } };
+    expect(isSpaMode()).toBeUndefined();
+  });
+
+  it('should return true when window.__reactRouterContext.isSpaMode is true', () => {
+    // @ts-expect-error - Tests
+    window = { __reactRouterContext: { isSpaMode: true } };
+    expect(isSpaMode()).toBe(true);
+  });
+
+  it('should return false when window.__reactRouterContext.isSpaMode is false', () => {
+    // @ts-expect-error - Tests
+    window = { __reactRouterContext: { isSpaMode: false } };
+    expect(isSpaMode()).toBe(false);
+  });
+});
diff --git a/packages/react-router/vitest.config.mts b/packages/react-router/vitest.config.mts
new file mode 100644
index 0000000000..5fcd8bde40
--- /dev/null
+++ b/packages/react-router/vitest.config.mts
@@ -0,0 +1,9 @@
+import { defineConfig } from 'vitest/config';
+
+export default defineConfig({
+  test: {
+    globals: true,
+    environment: 'jsdom',
+    setupFiles: './vitest.setup.mts',
+  },
+});
diff --git a/packages/react-router/vitest.setup.mts b/packages/react-router/vitest.setup.mts
new file mode 100644
index 0000000000..2c3b51d11f
--- /dev/null
+++ b/packages/react-router/vitest.setup.mts
@@ -0,0 +1,3 @@
+globalThis.__DEV__ = true;
+globalThis.PACKAGE_NAME = '@clerk/react-router';
+globalThis.PACKAGE_VERSION = '0.0.0-test';