Backend-as-a-Service

Convex vs Supabase

Reactive backend platform with a TypeScript database and realtime queries.

The open-source Firebase alternative with Postgres

Side by side

Pricing model
ConvexUsage-based
SupabaseHybrid
Starting price
Convex$25/mo
SupabaseFreemium
Free tier
ConvexYes — Generous free tier
SupabaseYes
Maturity
Convex—
SupabaseEstablished
Availability
ConvexGenerally available
SupabaseGenerally available
Last checked
ConvexOct 11, 2026
SupabaseOct 16, 2026

When each one fits

Choose Convex when…

  • Realtime, reactive apps

    Auto-updating queries without plumbing

  • TypeScript teams

    End-to-end type safety

Convex strengths

  • Reactive, realtime by default

  • TypeScript-native end to end

  • Great DX for app developers

Choose Supabase when…

  • Startup founders and indie developers who need a complete backend-as-a-service with auth, database, and storage in one place

  • Teams moving from Firebase who want a relational database with a generous free tier

  • Developers who want to self-host their database infrastructure while keeping a familiar UI

Look past Supabase if…

  • Teams needing a horizontally sharded database for massive write throughput

  • Enterprises requiring SOC 2 on the free plan without upgrading to a paid tier

Supabase strengths

  • Postgres database

  • Authentication

  • Auto-generated REST and GraphQL APIs

  • Realtime subscriptions

  • Edge functions

  • File storage

  • Row-level security

  • Self-hostable

Trade-offs

Known weaknesses from each tool’s record. Sourced ones link to where they came from.

Convex

  • Younger ecosystem

    No source on file

  • Less SQL-oriented

    No source on file

Supabase

  • Free tier projects are automatically paused after one week of inactivity, limiting continuous availability for hobby projects.

    supabase.com ↗

  • Custom SMTP integration for authentication emails fails with Microsoft Office 365 and Outlook, breaking standard email workflows.

    GitHub issue #34425 ↗

  • The Supabase Node.js client causes ESM handling issues that break Vitest testing environments.

    GitHub issue #30407 ↗

  • Extension version pinning is deprecated, forcing users to accept default versions and ignoring explicit version specifications.

    github.com ↗

Next steps