Convex vs Supabase

Convex vs Supabase comparison for backend platforms. Compare reactive backend vs Postgres BaaS for your app.

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Schnelles Urteil

Gewinner: Kommt darauf an

Convex offers a unique reactive, TypeScript-first backend. Supabase provides open-source Postgres with more traditional architecture. Choose Convex for real-time apps; choose Supabase for Postgres and flexibility.

Wählen Sie Convex, wenn...

✓ You want real-time out of the box
✓ TypeScript end-to-end is important
✓ You like functions-as-backend approach
✓ You want automatic reactivity
✓ You prefer less infrastructure thinking

Wählen Sie Supabase, wenn...

✓ You want standard Postgres
✓ Open-source and self-hosting matter
✓ You need Row Level Security
✓ You want SQL access
✓ You prefer more control over infrastructure

Funktion-für-Funktion-Vergleich

Kategorie	Convex	Supabase	Gewinner
Pricing	Free tier available. Pro: From $25/mo.	Free: 500MB. Pro: $25/mo. Self-host: Free forever.	Supabase
Free Tier	Limited free tier for development.	500MB database, unlimited API requests, auth included.	Supabase
Developer Experience	Excellent. Full TypeScript, reactive queries, automatic sync.	Good. REST and client libs. SQL knowledge helpful.	Convex
Documentation	Good docs. TypeScript-focused. Growing community.	Excellent docs. Framework guides. Large community.	Unentschieden
Scalability	Managed scaling. Built for reactive workloads.	Scales well. Postgres proven at scale.	Unentschieden
Features	Reactive database, functions, file storage, scheduling.	Postgres, auth, storage, edge functions, real-time, vector.	Unentschieden

Code-Vergleich

Reactive Query

typescript

import { useQuery, useMutation } from 'convex/react';
import { api } from '../convex/_generated/api';

function MessageList() {
  // Automatically updates when data changes!
  const messages = useQuery(api.messages.list);
  const sendMessage = useMutation(api.messages.send);
  
  return <div>{messages?.map(m => <Message key={m._id} {...m} />)}</div>;
}

Convex queries are automatically reactive.

Query with Client

typescript

import { createClient } from '@supabase/supabase-js';

const supabase = createClient(url, anonKey);

const { data: messages } = await supabase
  .from('messages')
  .select('*, author:users(name)')
  .order('created_at', { ascending: false });

// Real-time requires separate subscription

Supabase offers SQL-like client queries.

🔄 Migrationshinweise

These are fundamentally different architectures. Convex uses a custom reactive database; Supabase is Postgres. Migration requires rethinking data access patterns.

Häufig gestellte Fragen

Is Convex a database? ▼

Convex is a backend platform with a built-in reactive database. It's more like 'backend-as-a-service' than just a database. You write TypeScript functions that run on their servers.

Can I self-host Convex? ▼

No, Convex is cloud-only. If self-hosting is important, Supabase is the better choice.

Convex ausprobieren

The reactive backend

Supabase ausprobieren

Open source Firebase alternative

⚖ Im interaktiven Tool vergleichen

Zuletzt aktualisiert: January 11, 2026