Convex vs Supabase: choosing your backend in 2026
Convex and Supabase are both legitimately good, and "which is better" is the wrong question. They embody different philosophies, and the right choice depends on what your product needs — not on which has the louder fanbase. We ship on both, and we pick per project. Here's the framework we use.
Supabase is Postgres, plus the things you'd otherwise bolt onto Postgres: auth, storage, realtime subscriptions, edge functions, and auto-generated APIs, all around a real, standard SQL database. Its great strength is exactly that — it's Postgres. You get the full power of SQL, a massive ecosystem, decades of tooling, and zero lock-in at the data layer, because underneath it's a database you could lift and run anywhere. If your team thinks in SQL and relational modeling, Supabase feels like home.
Convex is a different shape. It's a reactive backend where your queries and mutations are TypeScript functions, your data is automatically kept in sync with the client, and the whole thing is typed end to end with no API layer to write. The strength is developer velocity and a fundamentally reactive model — UIs that update live without you wiring up subscriptions, and a single language from database to component. For a TypeScript team building something inherently live, it removes an enormous amount of glue code.
The deciding questions are usually these. Do you need raw SQL — complex joins, analytical queries, reporting, an existing Postgres you're migrating? Lean Supabase. Is your app reactive at its core — collaborative, live dashboards, anything where data changing on the server should ripple to every client instantly — and is your team all-in on TypeScript? Convex shines. How much does zero lock-in matter to you versus maximum velocity? That trade-off is the heart of it.
On scaling and operations, both are production-grade, but the mental model differs. Supabase scaling is Postgres scaling — familiar, well-documented, with all the usual levers and all the usual responsibilities. Convex abstracts more of the operational surface away, which means less to manage and less to tune by hand, at the cost of working within its model rather than around it. Neither is a toy; both run real businesses today.
If we had to compress it to a sentence: choose Supabase when you want the power and portability of Postgres with batteries included, and Convex when you want maximum TypeScript velocity and a reactive data model with minimal backend plumbing. There's no wrong answer here, only a fit — and the worst move is picking on hype and discovering three months in that you wanted the other philosophy all along. (Both platforms evolve fast; sanity-check current pricing and limits against their docs before you commit.)