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Appsmith vs Supabase: 2026 Comparison

Appsmith Supabase
Overview An open-source low-code platform for building internal tools with a visual builder and extensive data source connectors. An open-source Firebase alternative with PostgreSQL database, authentication, real-time subscriptions, and edge functions.
Pricing Freemium (Free-$40/user/month) Freemium (Free-$25/month)
Key Features
  • Open source
  • Visual builder
  • Data source connectors
  • JavaScript widgets
  • Git sync
  • RBAC
  • Audit logs
  • Custom widgets
  • PostgreSQL database
  • Authentication
  • Real-time
  • Edge functions
  • Storage
  • Vector embeddings
  • Auto-generated APIs
  • Dashboard
Pros
  • Open source
  • Self-hosted option
  • Good community
  • Many connectors
  • Open source
  • PostgreSQL-based
  • Generous free tier
  • Great developer experience
Cons
  • UI can be janky
  • Learning curve
  • Community support varies
  • Fewer pre-built components
  • Scaling can get expensive
  • Newer platform
  • Some features in beta
  • Self-hosting requires expertise