Best Firebase Alternatives(2026)
We compared 3 alternatives to Firebase — so you can find the best option for your needs and budget.
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You're replacing
Firebase
freemiumBuild and run successful apps
Starts at $25/month
Common reasons to switch
Vendor lock-inExpensive at scaleNoSQL limitationsComplex billing
Supabase is an open source Firebase alternative providing a Postgres database, Auth, realtime, storage, and edge functions.
Pros
+Full Postgres with SQL
+Built-in auth and storage
+Open source
Cons
−Free tier pauses after 1 week inactive
−Self-hosting is complex
−Edge functions limited
PostgreSQLAuthenticationRealtimeStorageEdge Functions
Neon is a serverless PostgreSQL database with branching, autoscaling, and a generous free tier.
Pros
+Scale-to-zero (no idle cost)
+Database branching for dev/test
+Fast cold starts
Cons
−No non-Postgres support
−Relatively new
−Connection limits on free tier
Serverless PostgreSQLDatabase branchingAutoscalingConnection poolingPoint-in-time restore
MongoDB is the most popular NoSQL document database with a flexible schema and Atlas cloud service.
Pros
+Flexible schema
+Horizontal scaling
+Rich query language
Cons
−No joins (must denormalize)
−Can use more memory than Postgres
−ACID only at document level by default
Document modelAtlas cloudAggregation pipelineChange streamsFull-text search