diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index 73d40756..d1cc2244 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -79,6 +79,27 @@ jobs:
           ./reactfire-${{ github.run_id }}/unpack.sh
       - name: Run tests
         run: npm run test
+  type-check:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        react: ["18", "19"]
+      fail-fast: false
+    name: Type check (React ${{ matrix.react }})
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Setup node
+        uses: actions/setup-node@v4
+        with:
+          node-version: '24'
+          cache: 'npm'
+      - name: Install deps
+        run: npm ci
+      - name: Install React ${{ matrix.react }} types
+        run: npm install --no-save react@${{ matrix.react }} react-dom@${{ matrix.react }} @types/react@${{ matrix.react }} @types/react-dom@${{ matrix.react }}
+      - name: Type check
+        run: npx tsc --noEmit
   publish:
     runs-on: ubuntu-latest
     name: Publish (NPM)
diff --git a/docs/reference/functions/AuthCheck.md b/docs/reference/functions/AuthCheck.md
index 9bedbb15..aa03a2be 100644
--- a/docs/reference/functions/AuthCheck.md
+++ b/docs/reference/functions/AuthCheck.md
@@ -6,7 +6,7 @@
 
 # ~~Function: AuthCheck()~~
 
-> **AuthCheck**(`__namedParameters`): `Element`
+> **AuthCheck**(`__namedParameters`): `ReactElement`
 
 Defined in: [src/auth.tsx:247](https://github.com/FirebaseExtended/reactfire/blob/main/src/auth.tsx#L247)
 
@@ -18,7 +18,7 @@ Defined in: [src/auth.tsx:247](https://github.com/FirebaseExtended/reactfire/blo
 
 ## Returns
 
-`Element`
+`ReactElement`
 
 ## Deprecated
 
diff --git a/docs/reference/functions/SuspenseWithPerf.md b/docs/reference/functions/SuspenseWithPerf.md
index ea4a1e9d..6ab06a72 100644
--- a/docs/reference/functions/SuspenseWithPerf.md
+++ b/docs/reference/functions/SuspenseWithPerf.md
@@ -6,7 +6,7 @@
 
 # Function: SuspenseWithPerf()
 
-> **SuspenseWithPerf**(`__namedParameters`): `Element`
+> **SuspenseWithPerf**(`__namedParameters`): `ReactElement`
 
 Defined in: [src/performance.tsx:9](https://github.com/FirebaseExtended/reactfire/blob/main/src/performance.tsx#L9)
 
@@ -18,4 +18,4 @@ Defined in: [src/performance.tsx:9](https://github.com/FirebaseExtended/reactfir
 
 ## Returns
 
-`Element`
+`ReactElement`
diff --git a/docs/reference/type-aliases/StorageImageProps.md b/docs/reference/type-aliases/StorageImageProps.md
index 5fd6a740..b75fa337 100644
--- a/docs/reference/type-aliases/StorageImageProps.md
+++ b/docs/reference/type-aliases/StorageImageProps.md
@@ -14,7 +14,7 @@ Defined in: [src/storage.tsx:36](https://github.com/FirebaseExtended/reactfire/b
 
 ### placeHolder?
 
-> `optional` **placeHolder?**: `JSX.Element`
+> `optional` **placeHolder?**: `React.ReactNode`
 
 Defined in: [src/storage.tsx:40](https://github.com/FirebaseExtended/reactfire/blob/main/src/storage.tsx#L40)
 
diff --git a/docs/reference/variables/AnalyticsProvider.md b/docs/reference/variables/AnalyticsProvider.md
index 1e51416e..67edf246 100644
--- a/docs/reference/variables/AnalyticsProvider.md
+++ b/docs/reference/variables/AnalyticsProvider.md
@@ -6,7 +6,7 @@
 
 # Variable: AnalyticsProvider
 
-> `const` **AnalyticsProvider**: (`props`) => `Element`
+> `const` **AnalyticsProvider**: (`props`) => `ReactElement`
 
 Defined in: [src/sdk.tsx:74](https://github.com/FirebaseExtended/reactfire/blob/main/src/sdk.tsx#L74)
 
@@ -18,4 +18,4 @@ Defined in: [src/sdk.tsx:74](https://github.com/FirebaseExtended/reactfire/blob/
 
 ## Returns
 
-`Element`
+`ReactElement`
diff --git a/docs/reference/variables/AppCheckProvider.md b/docs/reference/variables/AppCheckProvider.md
index dd717bde..ff42596a 100644
--- a/docs/reference/variables/AppCheckProvider.md
+++ b/docs/reference/variables/AppCheckProvider.md
@@ -6,7 +6,7 @@
 
 # Variable: AppCheckProvider
 
-> `const` **AppCheckProvider**: (`props`) => `Element`
+> `const` **AppCheckProvider**: (`props`) => `ReactElement`
 
 Defined in: [src/sdk.tsx:72](https://github.com/FirebaseExtended/reactfire/blob/main/src/sdk.tsx#L72)
 
@@ -18,4 +18,4 @@ Defined in: [src/sdk.tsx:72](https://github.com/FirebaseExtended/reactfire/blob/
 
 ## Returns
 
-`Element`
+`ReactElement`
diff --git a/docs/reference/variables/AuthProvider.md b/docs/reference/variables/AuthProvider.md
index 47de1c97..11ea5392 100644
--- a/docs/reference/variables/AuthProvider.md
+++ b/docs/reference/variables/AuthProvider.md
@@ -6,7 +6,7 @@
 
 # Variable: AuthProvider
 
-> `const` **AuthProvider**: (`props`) => `Element`
+> `const` **AuthProvider**: (`props`) => `ReactElement`
 
 Defined in: [src/sdk.tsx:73](https://github.com/FirebaseExtended/reactfire/blob/main/src/sdk.tsx#L73)
 
@@ -18,4 +18,4 @@ Defined in: [src/sdk.tsx:73](https://github.com/FirebaseExtended/reactfire/blob/
 
 ## Returns
 
-`Element`
+`ReactElement`
diff --git a/docs/reference/variables/DatabaseProvider.md b/docs/reference/variables/DatabaseProvider.md
index c2a3a7e7..e8069948 100644
--- a/docs/reference/variables/DatabaseProvider.md
+++ b/docs/reference/variables/DatabaseProvider.md
@@ -6,7 +6,7 @@
 
 # Variable: DatabaseProvider
 
-> `const` **DatabaseProvider**: (`props`) => `Element`
+> `const` **DatabaseProvider**: (`props`) => `ReactElement`
 
 Defined in: [src/sdk.tsx:75](https://github.com/FirebaseExtended/reactfire/blob/main/src/sdk.tsx#L75)
 
@@ -18,4 +18,4 @@ Defined in: [src/sdk.tsx:75](https://github.com/FirebaseExtended/reactfire/blob/
 
 ## Returns
 
-`Element`
+`ReactElement`
diff --git a/docs/reference/variables/FirestoreProvider.md b/docs/reference/variables/FirestoreProvider.md
index 6e680dcf..d689f31f 100644
--- a/docs/reference/variables/FirestoreProvider.md
+++ b/docs/reference/variables/FirestoreProvider.md
@@ -6,7 +6,7 @@
 
 # Variable: FirestoreProvider
 
-> `const` **FirestoreProvider**: (`props`) => `Element`
+> `const` **FirestoreProvider**: (`props`) => `ReactElement`
 
 Defined in: [src/sdk.tsx:76](https://github.com/FirebaseExtended/reactfire/blob/main/src/sdk.tsx#L76)
 
@@ -18,4 +18,4 @@ Defined in: [src/sdk.tsx:76](https://github.com/FirebaseExtended/reactfire/blob/
 
 ## Returns
 
-`Element`
+`ReactElement`
diff --git a/docs/reference/variables/FunctionsProvider.md b/docs/reference/variables/FunctionsProvider.md
index 0557ac83..918b2609 100644
--- a/docs/reference/variables/FunctionsProvider.md
+++ b/docs/reference/variables/FunctionsProvider.md
@@ -6,7 +6,7 @@
 
 # Variable: FunctionsProvider
 
-> `const` **FunctionsProvider**: (`props`) => `Element`
+> `const` **FunctionsProvider**: (`props`) => `ReactElement`
 
 Defined in: [src/sdk.tsx:77](https://github.com/FirebaseExtended/reactfire/blob/main/src/sdk.tsx#L77)
 
@@ -18,4 +18,4 @@ Defined in: [src/sdk.tsx:77](https://github.com/FirebaseExtended/reactfire/blob/
 
 ## Returns
 
-`Element`
+`ReactElement`
diff --git a/docs/reference/variables/PerformanceProvider.md b/docs/reference/variables/PerformanceProvider.md
index ef926f29..ee2fcc28 100644
--- a/docs/reference/variables/PerformanceProvider.md
+++ b/docs/reference/variables/PerformanceProvider.md
@@ -6,7 +6,7 @@
 
 # Variable: PerformanceProvider
 
-> `const` **PerformanceProvider**: (`props`) => `Element`
+> `const` **PerformanceProvider**: (`props`) => `ReactElement`
 
 Defined in: [src/sdk.tsx:78](https://github.com/FirebaseExtended/reactfire/blob/main/src/sdk.tsx#L78)
 
@@ -18,4 +18,4 @@ Defined in: [src/sdk.tsx:78](https://github.com/FirebaseExtended/reactfire/blob/
 
 ## Returns
 
-`Element`
+`ReactElement`
diff --git a/docs/reference/variables/RemoteConfigProvider.md b/docs/reference/variables/RemoteConfigProvider.md
index 071b8e4c..8d3d3625 100644
--- a/docs/reference/variables/RemoteConfigProvider.md
+++ b/docs/reference/variables/RemoteConfigProvider.md
@@ -6,7 +6,7 @@
 
 # Variable: RemoteConfigProvider
 
-> `const` **RemoteConfigProvider**: (`props`) => `Element`
+> `const` **RemoteConfigProvider**: (`props`) => `ReactElement`
 
 Defined in: [src/sdk.tsx:80](https://github.com/FirebaseExtended/reactfire/blob/main/src/sdk.tsx#L80)
 
@@ -18,4 +18,4 @@ Defined in: [src/sdk.tsx:80](https://github.com/FirebaseExtended/reactfire/blob/
 
 ## Returns
 
-`Element`
+`ReactElement`
diff --git a/docs/reference/variables/StorageProvider.md b/docs/reference/variables/StorageProvider.md
index f558ec1c..dbcb81c1 100644
--- a/docs/reference/variables/StorageProvider.md
+++ b/docs/reference/variables/StorageProvider.md
@@ -6,7 +6,7 @@
 
 # Variable: StorageProvider
 
-> `const` **StorageProvider**: (`props`) => `Element`
+> `const` **StorageProvider**: (`props`) => `ReactElement`
 
 Defined in: [src/sdk.tsx:79](https://github.com/FirebaseExtended/reactfire/blob/main/src/sdk.tsx#L79)
 
@@ -18,4 +18,4 @@ Defined in: [src/sdk.tsx:79](https://github.com/FirebaseExtended/reactfire/blob/
 
 ## Returns
 
-`Element`
+`ReactElement`
diff --git a/src/auth.tsx b/src/auth.tsx
index d535b894..267ffd4d 100644
--- a/src/auth.tsx
+++ b/src/auth.tsx
@@ -244,7 +244,7 @@ export function ClaimsCheck({ user, fallback, children, requiredClaims }: Claims
  *
  * Meant for Concurrent mode only (`<FirebaseAppProvider suspense=true />`). [More detail](https://github.com/FirebaseExtended/reactfire/issues/325#issuecomment-827654376).
  */
-export function AuthCheck({ fallback, children, requiredClaims }: AuthCheckProps): JSX.Element {
+export function AuthCheck({ fallback, children, requiredClaims }: AuthCheckProps): React.ReactElement {
   const { data: user } = useUser<User>();
 
   const suspenseMode = useSuspenseEnabledFromConfigAndContext();
diff --git a/src/performance.tsx b/src/performance.tsx
index 78a0455c..7f444bae 100644
--- a/src/performance.tsx
+++ b/src/performance.tsx
@@ -6,7 +6,7 @@ export interface SuspensePerfProps {
   fallback: React.ReactNode;
 }
 
-export function SuspenseWithPerf({ children, traceId, fallback }: SuspensePerfProps): JSX.Element {
+export function SuspenseWithPerf({ children, traceId, fallback }: SuspensePerfProps): React.ReactElement {
   // TODO: Should this import firebase/performance?
 
   const perf = typeof globalThis !== 'undefined' ? globalThis.performance : undefined;
diff --git a/src/sdk.tsx b/src/sdk.tsx
index 2e7af1a6..ee66ffff 100644
--- a/src/sdk.tsx
+++ b/src/sdk.tsx
@@ -28,7 +28,7 @@ export const RemoteConfigSdkContext = React.createContext<RemoteConfig | undefin
 type FirebaseSdks = Analytics | AppCheck | Auth | Database | Firestore | FirebasePerformance | FirebaseStorage | Functions | RemoteConfig;
 
 function getSdkProvider<Sdk extends FirebaseSdks>(SdkContext: React.Context<Sdk | undefined>) {
-  return function SdkProvider(props: React.PropsWithChildren<{ sdk: Sdk }>) {
+  return function SdkProvider(props: React.PropsWithChildren<{ sdk: Sdk }>): React.ReactElement {
     if (!props.sdk) throw new Error('no sdk provided');
 
     const contextualAppName = useFirebaseApp().name;
diff --git a/src/storage.tsx b/src/storage.tsx
index 90ea56c1..5a0299da 100644
--- a/src/storage.tsx
+++ b/src/storage.tsx
@@ -37,7 +37,7 @@ export type StorageImageProps = {
   storagePath: string;
   storage?: FirebaseStorage;
   suspense?: boolean;
-  placeHolder?: JSX.Element;
+  placeHolder?: React.ReactNode;
 };
 
 function StorageFromContext(props: StorageImageProps & React.DetailedHTMLProps<React.ImgHTMLAttributes<HTMLImageElement>, HTMLImageElement>) {
@@ -48,7 +48,7 @@ function StorageFromContext(props: StorageImageProps & React.DetailedHTMLProps<R
   return <INTERNALStorageImage {...props} />;
 }
 
-function INTERNALStorageImage(props: StorageImageProps & React.DetailedHTMLProps<React.ImgHTMLAttributes<HTMLImageElement>, HTMLImageElement>): JSX.Element {
+function INTERNALStorageImage(props: StorageImageProps & React.DetailedHTMLProps<React.ImgHTMLAttributes<HTMLImageElement>, HTMLImageElement>): React.ReactNode {
   const { storage, storagePath, suspense, placeHolder, ...imgProps } = props;
 
   const reactfireOptions: ReactFireOptions<string> = {