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Supabase vs Convex (2026)

Head-to-head comparison for vibe coders: scores, free tiers, pricing and best-for, using the same evidence-based methodology. Rankings are never for sale.

Supabase

Open-source Postgres development platform

93
Convex

Reactive backend platform

84

Side-by-side comparison

Criterion Supabase Convex
Score93/10084/100
Free tierYes: 2 projects, 500 MB DB, 50K MAU, 1 GB storage (pauses after 1 week idle)Yes: Free plan with hard resource caps
Open sourceYesYes
PricingPro from $25/mo per org (includes $10 compute credit)Professional $25/developer/mo; Starter $0 base plus pay-as-you-go
Best forDefault backend for vibe-coded apps (Lovable, Bolt, v0 integrations)TypeScript apps that need realtime data with minimal backend code
CategoryDatabases & backendsDatabases & backends

Score breakdown

Criterion Supabase Convex
Fit for the use case /25 24 22
Vibe-coder friendliness /15 14 13
Output quality & reliability /15 13 13
Pricing & free tier /15 13 12
Ecosystem & integrations /10 10 8
Momentum /10 10 8
Code ownership & lock-in /10 9 8

Based on desk research of official pricing pages and docs; see methodology.

Who wins: Supabase or Convex?

By score, Supabase wins Supabase vs Convex at 93/100 vs 84/100. Supabase: The best fit for AI builders: Postgres, auth and storage in one, a generous free tier, open source and deep builder integrations. Convex: Very agent-friendly (everything is TypeScript), realtime by default, self-hostable. FSL is source-available rather than OSI open source at first. Supabase is best for Default backend for vibe-coded apps (Lovable, Bolt, v0 integrations). Convex is best for TypeScript apps that need realtime data with minimal backend code.

FAQ

Which is better, Supabase or Convex?
By our score, Supabase (93/100) ranks above Convex (84/100). Supabase is best for Default backend for vibe-coded apps (Lovable, Bolt, v0 integrations). The right pick still depends on your workflow; see the side-by-side table.
What is the Supabase vs Convex score?
Supabase scores 93/100 and Convex scores 84/100 on PromptToProd's evidence-based ranking. Scores are never for sale.

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