Supabase vs Appsmith
Supabase and Appsmith are both popular tools in the No-Code / Low-Code AI space. Supabase uses a freemium model starting at Free, while Appsmith is open-source from Free. Both offer a free tier to get started. Below we break down features, pricing, strengths, and weaknesses to help you decide which tool fits your workflow best.
Last updated: July 2026
Quick Verdict
Choose Supabase if you want the open-source firebase alternative with ai-powered sql generation.. Supabase's biggest strengths include generous free tier with real postgresql database and open-source with option to self-host. It's also rated higher (4.6 vs 3.7). Choose Appsmith if you prefer open-source platform for building internal tools and admin panels.. Key advantages include free and open-source with self-hosting option and connects to virtually any data source.
The open-source Firebase alternative with AI-powered SQL generation.
Open-source platform for building internal tools and admin panels.
| Supabase | Appsmith | |
|---|---|---|
| Pricing | Free | Free |
| Free Tier | Yes | Yes |
| Pricing Model | Freemium | Open-source |
| Rating | ★ 4.6 | ★ 3.7 |
| Categories | Database & SQL Tools, No-Code / Low-Code AI | No-Code / Low-Code AI |
| Key Features | 6 features | 6 features |
| Feature | Supabase | Appsmith |
|---|---|---|
| PostgreSQL database with automatic API generation | ✓ | — |
| AI SQL editor for natural language queries | ✓ | — |
| Authentication with 20+ social providers | ✓ | — |
| Real-time subscriptions via WebSockets | ✓ | — |
| Edge functions for serverless compute | ✓ | — |
| S3-compatible object storage | ✓ | — |
| Open-source drag-and-drop tool builder | — | ✓ |
| Connect to any database or REST/GraphQL API | — | ✓ |
| Pre-built widgets for tables, forms, charts | — | ✓ |
| Custom JavaScript for business logic | — | ✓ |
| Self-hosted or cloud deployment | — | ✓ |
| Git version control for apps | — | ✓ |
Supabase
Pros
- + Generous free tier with real PostgreSQL database
- + Open-source with option to self-host
- + AI SQL editor makes database queries accessible
- + Excellent developer experience and documentation
Cons
- − PostgreSQL only — no NoSQL option
- − Free tier pauses inactive projects after 1 week
- − Some features still maturing compared to Firebase
Appsmith
Pros
- + Free and open-source with self-hosting option
- + Connects to virtually any data source
- + Git integration enables version control for apps
- + Strong community with active development
Cons
- − Steeper learning curve than simpler no-code tools
- − Self-hosting requires infrastructure management
- − Advanced features less polished than Retool
The Bottom Line
Choose Supabase if: you want the open-source firebase alternative with ai-powered sql generation.. It's completely free to use. It holds a higher user rating (4.6 vs 3.7). Keep in mind: postgresql only — no nosql option.
Choose Appsmith if: you prefer open-source platform for building internal tools and admin panels.. It's completely free to use. Keep in mind: steeper learning curve than simpler no-code tools.
Both tools compete in the No-Code / Low-Code AI space. The right choice depends on your specific needs, team size, and budget.
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