Backend as a Service (BaaS)
Best Firebase Alternatives & Open-Source Competitors in 1970
Google Firebase is priced as pay-as-you-go (blaze plan), starting at Free tier then usage-based. Here are 3 alternatives, with their pricing, self-hosting effort and trade-offs.
Why teams move away from Firebase
- Hard vendor lock-in to Google Cloud architecture
- NoSQL indexing and complex relational queries are difficult/costly
- Surprise runaway billing risks if database reads spike unexpectedly
Firebase alternatives at a glance
| Tool | Licence | Starting price | Self-hosting | Stars |
|---|---|---|---|---|
| Google Firebase | Proprietary | Free tier then usage-based | Not available | N/A |
| Supabase | Open SourceSelf-Hostable | $25/mo (Pro tier) or Free Self-Hosted | Low (Official Docker template) | 75k |
| PocketBase | Open SourceSelf-Hostable | $0 (self-hosted single binary) | Low (one executable plus SQLite) | 61.6k |
| Appwrite | Open SourceSelf-Hostable | $0 (self-hosted) or $15/mo (Cloud Pro) | Medium (Docker Compose with many services) | 58.1k |
The alternatives in detail
Supabase
Freemium / Usage-based / Open-Source
- Starting price
- $25/mo (Pro tier) or Free Self-Hosted
- Free tier
- Free Cloud plan: 500MB database, 50,000 monthly active users
- Self-hosting
- Low (Official Docker template)
Pros
- Full power of standard PostgreSQL with Row Level Security (RLS)
- Built-in Authentication, Edge Functions, Realtime, and S3-compatible Storage
- Easy migration: plain standard SQL with zero proprietary lock-in
Cons
- Free tier projects pause after 1 week of inactivity
- Edge functions support TypeScript/Deno only
- Free projects pause after a week of inactivity, and heavy usage needs paid compute add-ons
PocketBase
Free (MIT), no official managed cloud
- Starting price
- $0 (self-hosted single binary)
- Free tier
- Unlimited self-hosted under MIT
- Self-hosting
- Low (one executable plus SQLite)
Pros
- One executable with SQLite, auth, realtime subscriptions and an admin UI
- Backups are a single database file copy
- MIT licensed with no vendor account, billing or seat count
Cons
- SQLite limits horizontal scaling under very high write load
- No official managed offering, so uptime and backups are yours
- Young plugin ecosystem compared with Supabase or Appwrite
Appwrite
Open source (BSD-3) / Cloud plans
- Starting price
- $0 (self-hosted) or $15/mo (Cloud Pro)
- Free tier
- Cloud free tier: 1 project, 2GB storage
- Self-hosting
- Medium (Docker Compose with many services)
Pros
- Auth, databases, storage, functions and messaging in one self-hostable stack
- REST and GraphQL APIs with SDKs for web, mobile and server
- BSD-3 licence, so everything can run on your own servers
Cons
- Many moving services make self-hosting heavier than Supabase
- Smaller community and fewer tutorials than Firebase or Supabase
- Cloud free tier is tighter than Supabase's
Firebase alternatives: FAQ
Why do teams look for Firebase alternatives?
The most common reasons are: hard vendor lock-in to Google Cloud architecture; noSQL indexing and complex relational queries are difficult/costly; surprise runaway billing risks if database reads spike unexpectedly.
What is the best open-source alternative to Firebase?
Supabase is the most-starred open-source option in this directory (75k GitHub stars). Full power of standard PostgreSQL with Row Level Security (RLS).
Can I self-host a Firebase alternative?
Supabase: Low (Official Docker template). PocketBase: Low (one executable plus SQLite). Appwrite: Medium (Docker Compose with many services).
Is there a free alternative to Firebase?
Supabase: Free Cloud plan: 500MB database, 50,000 monthly active users. PocketBase: Unlimited self-hosted under MIT. Appwrite: Cloud free tier: 1 project, 2GB storage.