Base44 to Supabase
Base44 to Supabase: the natural landing spot
Supabase does what Base44's backend does. The difference is you hold the keys.
Supabase is an open-source service that bundles a database, a login system and file storage — the exact three things Base44's export leaves behind. That fit is why "Base44 to Supabase" is the destination founders ask me about first. This page covers how it works, and gives you an honest read on the community SDK that promises to shortcut it.
The assessment is free. Your app stays untouched until you decide.
Why Supabase fits a Base44 app
Each thing Base44 keeps behind has a direct counterpart in Supabase, in an account that belongs to you.
Supabase is built on PostgreSQL, one of the most widely used databases in the world. Your app's records become ordinary tables you can inspect, back up and take elsewhere.
Accounts, passwords, resets and social sign-ins, handled by a service made for exactly that. The nobody on your side has to hand-roll password handling.
Uploads move into storage buckets in your project. From then on, no platform decision can separate your users from their files.
Small pieces of server code Supabase runs for you. The invisible work Base44 was doing gets rebuilt here, where you can read and change it.
One gap to know about: Supabase doesn't host frontends. The exported screens live somewhere like Vercel, Netlify or Cloudflare Pages, pointed at your Supabase backend.
What does the community SDK actually cover?
There's an open-source project, base44-to-supabase-sdk on GitHub, built by people in the community rather than by either company. The idea: exported Base44 code makes its data calls through Base44's SDK — the code library the screens use to talk to the backend — and this project aims to stand in for that library, answering the same calls from Supabase instead.
If it works for your app, that's real work saved. It's the rewiring step done for you. What it isn't is a migration.
The translation layer: your exported screens keep making the calls they were built with, and Supabase answers them. Less code to rewrite by hand.
Creating the Supabase project. Designing tables to match your records. Moving the data itself, and the files. Setting the security rules that decide who can read which record. Testing everything. The SDK moves none of that.
It's also community-maintained, so read its documentation against the calls your app actually makes before betting the migration on it. In a paid engagement I treat it as a tool to evaluate per app, not a given.
The move, in order
Same discipline as any migration I run: build beside the live app, prove it, then switch once.
How pricing, the written quote and the no-downtime guarantee work is on the Base44 migration page.
Questions founders ask about the Supabase move
It has a free tier, which is genuinely useful for testing the move. A live app with real users will land on a paid plan. But the bill sits in your account, at published prices, and nobody can reprice your whole business in one email.
No. At best it saves the rewiring step — the part where the app's data calls get repointed. Someone still has to set up the Supabase project, design the tables, move the data and files, and test all of it.
Login systems don't hand over stored passwords, for good security reasons. That's true of closed platforms generally. The standard answer is a one-time "set a new password" step for each user on the new system. The assessment confirms exactly what applies to your app.
Yes. The Supabase version is built alongside the running app, and your domain only switches after the new version passes your own tests. Until then your users notice nothing.
Much less so. Underneath, your data sits in PostgreSQL — a standard open-source database — so it can be moved to another host without a rebuild. That portability is a big part of why I recommend it.
Find out if Supabase is your answer
30 minutes on a call. We look at your app together and you leave knowing whether Supabase fits it, and what the move would involve.
Book a migration assessment →Free, no obligation. If a different target suits your app better, that's what you'll hear.