Open source
Appwrite
Open source backend with auth, databases, storage and functions
Backend as a ServiceOpen backend
Alternatives to Firebase
12 tools like Firebase, chosen by what they do. About Firebase
Open source
Supabase
Open source Postgres backend with auth, APIs, storage and realtime
Backend as a ServicePostgres backend
Open source
PocketBase
Single-file open source backend with database, auth and storage
Backend as a ServiceSingle-file backendArchived
Freemium
Open source
InstantDB
Open source backend for real-time apps with a built-in database
Backend PlatformsRealtime backend for frontends
Curated
Descope
Login and identity flows for customers, partners and AI agents
AuthenticationDrag and drop auth flows
Open source
Saleor
Open source headless commerce platform with a GraphQL API
Backend PlatformsGraphQL commerce platform
Open source
Nakama
Open source game backend for multiplayer and social games
Backend PlatformsOpen source game backend
Open source
Temporal
Open source durable execution platform for reliable workflows
Workflows and WebhooksDurable execution platform
Open source
Medusa
Open source commerce engine for online stores and B2B sales
Backend PlatformsOpen source headless commerce
Freemium
Formspree
Form backend that receives and handles submissions from static sites
Documents and FormsForm backend for static sites
Freemium
Cloudinary
Cloud service to store, transform and deliver images and video
StorageImage and video hosting