Firebase JavaScript SDK Reference
The Firebase JavaScript SDK implements the client-side libraries used byapplications using Firebase services. This SDK is distributed via:
To get started using Firebase, seeAdd Firebase to your JavaScript Project.
For source code, see theFirebase JavaScript SDK Github repo.
API Reference
firebase
firebase.app
firebase.appcheck
- AppCheck
- AppCheckProvider
- AppCheckToken
- AppCheckTokenResult
- CustomProvider
- CustomProviderOptions
- ReCaptchaEnterpriseProvider
- ReCaptchaV3Provider
firebase.analytics
- Analytics
- AnalyticsCallOptions
- SettingsOptions
- EventName
- ControlParams
- CustomParams
- EventParams
- Item
- Promotion
firebase.auth
- Auth
- ActionCodeInfo
- ActionCodeURL
- ApplicationVerifier
- AuthCredential
- AuthError
- AuthProvider
- AuthSettings
- Config
- ConfirmationResult
- EmailAuthProvider
- EmulatorConfig
- Error
- FacebookAuthProvider
- GithubAuthProvider
- GoogleAuthProvider
- IdTokenResult
- MultiFactorAssertion
- MultiFactorError
- MultiFactorInfo
- MultiFactorResolver
- MultiFactorSession
- PhoneAuthCredential
- PhoneMultiFactorAssertion
- PhoneMultiFactorEnrollInfoOptions
- PhoneMultiFactorGenerator
- PhoneMultiFactorInfo
- PhoneMultiFactorSignInInfoOptions
- PhoneSingleFactorInfoOptions
- MultiFactorUser
- OAuthCredential
- OAuthCredentialOptions
- OAuthProvider
- PhoneAuthProvider
- RecaptchaVerifier
- SAMLAuthProvider
- TwitterAuthProvider
- User
- UserInfo
- UserMetadata
firebase.database
firebase.firestore
- Blob
- CollectionReference
- DocumentChange
- DocumentReference
- DocumentSnapshot
- FieldPath
- FieldValue
- Firestore
- FirestoreDataConverter
- FirestoreError
- GeoPoint
- GetOptions
- LoadBundleTask
- LoadBundleTaskProgress
- PersistenceSettings
- Query
- QueryDocumentSnapshot
- QuerySnapshot
- SetOptions
- Settings
- SnapshotListenOptions
- SnapshotMetadata
- SnapshotOptions
- Timestamp
- Transaction
- WriteBatch
firebase.functions
firebase.installations
firebase.messaging
firebase.performance
firebase.remoteconfig
firebase.storage
Except as otherwise noted, the content of this page is licensed under theCreative Commons Attribution 4.0 License, and code samples are licensed under theApache 2.0 License. For details, see theGoogle Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.
Last updated 2025-12-16 UTC.