---
type: Comparison
title: "Convex vs Supabase: Backend-as-a-Service Comparison"
description: "Compare Convex vs Supabase for app backends. Real-time, database, serverless functions, and DX."
resource: "https://www.contextstudios.ai/comparisons/convex-vs-supabase"
category: technology
language: en
timestamp: "2026-02-20T08:40:02.167Z"
---

# Convex vs Supabase: Backend-as-a-Service Comparison

Convex is a reactive backend platform with real-time sync, serverless functions, and a document database. Supabase is an open-source Firebase alternative built on PostgreSQL with auth, storage, and edge functions.

## Comparison Factors

| Factor | convex | supabase | Winner |
|--------|------|------|--------|
| Real-Time Sync | Built-in reactive queries, automatic UI updates | Real-time subscriptions via PostgreSQL LISTEN/NOTIFY | a |
| Database | Document database with TypeScript-first schema | Full PostgreSQL with SQL, joins, extensions | b |
| Developer Experience | End-to-end TypeScript, zero-config, type-safe queries | Good DX but requires SQL knowledge, more config | a |
| Open Source & Self-Host | Proprietary, cloud-only | Fully open source, self-hostable | b |
| Serverless Functions | Integrated mutations/actions with ACID transactions | Edge Functions (Deno) with separate deployment | a |

## Key Statistics

- Supabase: 75K+ GitHub stars, fully open source
- Convex reactive queries update UIs in <50ms on average
- Supabase supports 50+ PostgreSQL extensions

## Choose convex When

- Building real-time reactive applications.
- Need an integrated development approach.
- Prioritize speed and responsiveness.

## Choose supabase When

- Focusing on SQL-centric applications.
- Need PostgreSQL's capabilities.
- Prioritize open-source solutions.

## Verdict

Convex excels in real-time reactive apps with its integrated approach. Supabase is better for SQL-centric apps needing PostgreSQL's power and open-source flexibility. Convex for DX-first real-time apps; Supabase for data-heavy PostgreSQL workloads.

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