Lovable is the most direct competitor to base44 in the AI-vibe-coding space. The migration is the simplest of any in this set because the mental model maps almost one-to-one. You are trading one prompt-to-app platform for another that does the same job with better fundamentals.
The killer feature for migrants: Lovable's exported code actually runs outside Lovable. Base44's does not. That alone makes Lovable a safer long-term bet, even if you stay on Lovable's hosting forever. If you are still weighing which alternative to move to, that roundup puts Lovable's exit cost next to the other seven.
Why migrate to Lovable
Three reasons we see teams pick Lovable:
- Same shape as base44, less broken. If you like AI-driven prompt-to-app development but you are tired of regression loops, credit burn, and editor crashes, Lovable solves most of those. The agent is more disciplined, the editor more stable.
- Real Supabase backend. No more proprietary SDK layer. You get Postgres, auth, storage, and RLS exposed natively. You can connect to your Supabase project from any tool.
- Working Git export. Lovable syncs two ways with a real Git repo, with code that runs on Vercel, Netlify, or your own infra. Base44 syncs with GitHub too, but its code still needs the SDK. Lovable's is real, working, portable code.
The trade-off: it is still AI-driven, still subject to a vendor's pricing and decisions, and still abstracts some of the underlying complexity. If you want to leave AI platforms entirely, Next.js + Supabase is the right destination instead.
What you keep, what you rebuild
| Layer | What you keep | What you rebuild |
|---|---|---|
| React components | JSX, Tailwind, hooks | SDK calls (@base44/sdk → Supabase) |
| Routing | URL structure | Re-implement on Lovable's framework conventions |
| Schema definitions | Field names + types | Recreate as Supabase tables (Lovable handles this via prompts) |
| Database rows | Data | None |
| Authentication | User identifiers | Supabase Auth (Lovable wires this for you) |
| RLS | Logic | Rewrite as Postgres policies |
| Backend functions | Function bodies | Wrap as Supabase Edge Functions |
| File uploads | Files | Re-upload to Supabase Storage |
| Webhooks | Endpoints | New URLs at Lovable hosting or Vercel |
| Scheduled jobs | None | Build with Supabase pg_cron or external |
| Real-time | None | Free with Supabase Realtime |
The rewrite is mostly mechanical. The new code is portable.
Architecture: source vs target
Base44 (current):
[browser] → CSR React (base44 hosted)
↓
@base44/sdk
↓
base44 backend (managed, opaque)
Lovable + Supabase (target):
DEVELOPMENT:
[lovable.dev in browser] → Lovable editor + AI agent
↓
your React + TypeScript project (TanStack Start; Vite if older)
↓
@supabase/supabase-js (real client)
PRODUCTION:
[user browser] → Lovable hosting OR Vercel/Netlify
↓
Supabase (Postgres + Auth + Storage + Functions)
Same shape as base44 from the user's view. Wildly different from the developer's view: you can connect to Supabase's Postgres directly, run SQL, edit RLS, and inspect anything.
Step-by-step migration plan
Phase 1 — Discovery (Week 1)
1. Inventory base44 surface area
Standard inventory: entities, functions, integrations, scheduled tasks, webhooks. Grep your SDK calls.
grep -rn "base44\." src/ | tee migration/sdk-calls.txt
2. Decide on hosting target
Lovable hosts your app for free with a *.lovable.app URL, or with a custom domain on paid tiers. For higher-traffic apps, export to Vercel or Netlify and use Lovable purely as the development environment.
| Hosting | Best for | Note |
|---|---|---|
| Lovable hosting | Apps with under 1,000 active users | Free SSL, custom domain on Pro |
| Vercel (from the synced repo) | Production-grade, edge, multi-region | Zero-config for TanStack Start projects; static dist/ build for older Vite projects |
| Netlify | Static-heavy or Jamstack | Lovable documents the static dist/ build of older Vite projects here |
We default to "develop on Lovable, deploy to Vercel" for production migrations.
Phase 2 — Lovable setup (Week 1)
3. Open Lovable and create the project
Visit lovable.dev. Sign in. Create a new project, connecting your own Supabase project from the prompt box as you do — step 4 explains why that has to happen first.
Lovable prompts you for an initial description. Paste a brief summary:
Migrating an app from base44. Project management for small teams.
Tables: users, projects, tasks, comments. Email + magic link auth.
Stripe billing. Slack webhook for notifications. Use my connected
Supabase project as the backend.
Lovable scaffolds: a TanStack Start project (new Lovable apps created since 13 May 2026 use TanStack Start with server-side rendering; older apps are React + Vite with pre-rendering for crawlers — docs.lovable.dev), the Supabase client, a basic auth flow, and starter UI.
4. Connect Supabase
Do this as part of creating the project, before the first prompt. Lovable's default backend is its built-in Cloud, which it switches on automatically the first time a feature needs a backend, and there is no one-click move from Cloud to your own Supabase project afterwards. A workspace owner or admin links your Supabase organization once; then you pick the project from + → Databases in the prompt box when you create the Lovable project (docs.lovable.dev). Connection details land in the project's .env file. Lovable documents these names for its Vite builds; check the .env in your synced repo for yours:
VITE_SUPABASE_URL=https://xxxxx.supabase.co
VITE_SUPABASE_PUBLISHABLE_KEY=...
Phase 3 — Rebuild iteratively (Weeks 1–3)
5. Drop in your base44 components
Upload src/components/ from your base44 export. Lovable's editor handles the file tree.
6. Prompt the agent feature-by-feature
Create a /projects route. Fetch projects from Supabase where
owner_id = auth.uid(). Render the existing ProjectList
component. Use the existing Tailwind classes.
Verify. Snapshot. Move to the next feature. Same discipline as every AI-platform migration: do not let the agent rewrite the whole app at once.
7. Recreate schema and RLS in Supabase
Lovable's agent can write the SQL from a description, but verify before applying. The schema migration is identical to the Next.js + Supabase migration:
create table public.projects (
id uuid primary key default gen_random_uuid(),
owner_id uuid not null references auth.users(id) on delete cascade,
name text not null,
status text not null default 'draft',
created_at timestamptz not null default now()
);
alter table public.projects enable row level security;
create policy "owner_can_select" on public.projects
for select using (auth.uid() = owner_id);
8. Replace SDK calls
Mechanical work. Lovable's agent does most of it if you point it at one component at a time.
// before
const projects = await base44.entities.Project.filter({ ownerId });
// after
const supabase = createClient();
const { data: projects } = await supabase
.from("projects")
.select("*")
.eq("owner_id", ownerId);
Phase 4 — Backend functions (Week 3)
9. Port backend functions
Each base44 function becomes a Supabase Edge Function. Base44 backend functions are TypeScript on Deno, and so are Supabase Edge Functions, so most function bodies port directly; what changes is the SDK layer. Lovable writes and deploys Edge Functions to your Supabase project when you describe the behaviour in chat, and keeps secrets such as a Stripe key in Supabase's secret store rather than in the code (docs.lovable.dev). For billing specifically, Lovable's payments integration builds checkout, subscriptions and webhook handling through chat, so rebuild it there rather than porting the base44 function line by line.
For a function you do port by hand, the shape is:
// supabase/functions/create-invoice/index.ts
import Stripe from "npm:stripe";
import { createClient } from "npm:@supabase/supabase-js@2";
Deno.serve(async (req) => {
const authHeader = req.headers.get("Authorization");
if (!authHeader) return new Response("unauthorized", { status: 401 });
// Runs queries as the calling user, so RLS still applies
const supabase = createClient(
Deno.env.get("SUPABASE_URL")!,
Deno.env.get("SUPABASE_ANON_KEY")!,
{ global: { headers: { Authorization: authHeader } } },
);
const stripe = new Stripe(Deno.env.get("STRIPE_SECRET_KEY")!);
const { project_id, amount } = await req.json();
const invoice = await stripe.invoices.create({ customer: "...", auto_advance: true });
await supabase.from("invoices").insert({ project_id, stripe_id: invoice.id, amount });
return Response.json({ id: invoice.id });
});
Phase 5 — Data backfill (Week 3–4)
10. Export from base44, import to Supabase
Standard backfill via @supabase/supabase-js and the service-role key. Run it locally, and keep the service-role key out of the app code.
import { createClient } from "@supabase/supabase-js";
import projects from "./export/projects.json";
const sb = createClient(process.env.SUPABASE_URL!, process.env.SUPABASE_SERVICE_ROLE!);
for (const batch of chunk(projects, 500)) {
await sb.from("projects").insert(batch.map(toRow));
}
Phase 6 — Deploy (Week 4)
11a. Deploy on Lovable hosting
Click Publish in Lovable. Add a custom domain on a paid plan (Pro and up). HTTPS is included.
11b. Or deploy to Vercel
Connect the project to GitHub with Lovable's Git sync, then import the repository at vercel.com/new. Vercel detects a TanStack Start project from Lovable and deploys it with zero configuration; detection needs @lovable.dev/vite-tanstack-config at version 2.6.2 or higher (vercel.com/docs). An older React + Vite project deploys as a static site instead: build command npm run build, output directory dist, the VITE_SUPABASE_* variables set before the build, and a rewrite so every route serves /index.html (docs.lovable.dev). From the CLI instead:
# After exporting to GitHub, on your local machine
npm install -g vercel
vercel link
vercel env pull .env.local
vercel --prod
Add custom domain on Vercel. Done.
Phase 7 — Cutover (Week 4–5)
12. Dual-run + DNS swap
Standard cutover. Dual-write for one to two weeks. Validate parity. Swap DNS at low-traffic hour.
Phase 8 — Sunset
13. Decommission base44
Cancel after thirty days of stable Lovable + Supabase production.
Common pitfalls
1. Trusting the agent on RLS. Lovable's agent writes RLS policies that often miss edge cases. Always test policies with at least two distinct users before going to production.
2. Mixed-component prompts. "Add a logout button and clean up the dashboard" is the same kind of prompt that breaks base44's agent. Same discipline applies on Lovable: scope every prompt to one component or one route.
3. Forgetting to export early. Lovable's export feature is reliable, but you should export and npm run build locally within the first week to confirm portability. If something is wrong with your build, find out early.
4. Ending up on the wrong backend. Lovable puts new projects on its built-in Cloud backend by default, and there is no one-click move from Cloud to your own Supabase project later. For a production migration, connect your own Supabase project before the first build prompt.
5. Pricing tier upgrades sneaking up. Lovable's free tier is generous but limited. If your migration is large, the credit usage will push you to Pro or Business within the first week. Budget for it.
6. SEO regression on URL changes. Same warning as every migration. Map old URLs to new; ship 301s.
Timeline + team
Three to five weeks with this team:
- One full-stack engineer. Owns the rebuild. Forty hours per week.
- One product owner. Validates parity. Five hours per week.
Lovable's agent does enough mechanical work that one engineer can drive the migration. Add a second person for apps with non-trivial RLS or compliance requirements.
Cost
Migration tiers:
| Tier | Price | What you get |
|---|---|---|
| Small | $6,000 | 3–4 weeks, simple app, Lovable + Supabase |
| Medium | $12,000 | 4–6 weeks, custom integrations, complex auth |
| Enterprise | $25,000+ | Compliance prep, white-glove cutover, on-call support |
Lovable: Pro at $25/month or Business at $50/month, priced per workspace with unlimited users (lovable.dev/pricing). Supabase: free tier, or Pro from $25/month (supabase.com/pricing). If you host the frontend on Vercel, its Pro plan is $20/month (vercel.com/pricing). Prices read 23 September 2026.
Can be cheaper than base44 on monthly cost, with a clearer credit model.
DIY vs hire decision
DIY this if:
- You have shipped a React + Supabase app before, or you are comfortable working with AI agents and reviewing their output.
- Your app has under thirty entities and standard auth.
- You can spare three to five weeks of focused time.
Hire help if:
- You have not used Supabase before.
- Your app has paying users and you cannot risk an agent-written bug.
- Your team is base44-only.
Lovable's agent does enough heavy lifting that experienced full-stack devs can drive it solo.
If the app you are moving is a customer-facing SaaS rather than an internal tool, the choice deserves its own pass before you commit the three to five weeks — we weigh the two platforms on that specific workload in Base44 vs Lovable for SaaS.
On the two timelines you will see across this site: the three-to-five-week figure above is focused build time, roughly 140 engineer-hours. The step-by-step SaaS walkthrough quotes three to six weeks elapsed — the extra span is auth-flow validation, user-import dry runs and the cutover rehearsal, which are calendar time rather than build time. Both numbers describe the same migration. Multi-tenant data or custom permissions logic push it to six to ten weeks.
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Related migrations
- Base44 to bolt.new — alternative AI-native dev environment, deploys to Vercel.
- Base44 to Replit — closest peer with real container access.
- Base44 to Next.js + Supabase — leave AI platforms entirely.