How to build a SaaS with Lovable and Supabase (no coding required)

You can build a fully functional SaaS product with user accounts, a database, and a working backend using Lovable and Supabase — without writing a single line of code yourself. I've done it, and in this guide I'll walk you through exactly how.

This combination — Lovable for the frontend and UI, Supabase for the backend and data — has become one of the most popular stacks in the vibe coding community. Here's why it works so well, and how to get started.

Why Lovable + Supabase?

Lovable is an AI app builder that generates complete React applications from plain language prompts. It handles the frontend: the screens, buttons, forms, and user interactions.

Supabase is an open-source backend platform — a Postgres database with built-in user authentication, file storage, and APIs. It handles the backend: storing user data, managing logins, and making your data persist between sessions.

Together, they give you a complete SaaS stack. And Lovable has native Supabase integration, which means the two tools talk to each other without you having to write any glue code.

What we're building

In this tutorial, we'll build a simple feedback collection SaaS — a tool where users sign up, submit feedback entries, and can see their own history. It's a genuine product, not a toy.

Step 1: Set up your Supabase project

Go to supabase.com and create a free account. Click "New project", give it a name, choose a region, and set a database password (save this somewhere).

Once your project is created, you'll land on a dashboard. The key things you'll need are:

• Your Project URL (looks like https://xyz.supabase.co)
• Your anon public key (find it under Settings → API)

Keep these open — Lovable will ask for them.

Step 2: Start your Lovable project

Go to lovable.dev and create a new project. In the initial prompt, describe your product clearly:

"Build a feedback collection SaaS. Users should be able to sign up and log in. Once logged in, they can submit feedback entries with a title, description, and category. They can see all their past submissions. The design should be clean and minimal."

Lovable will generate a complete app. It'll have a landing page, a login/signup flow, and a dashboard. Give it a minute to run.

Step 3: Connect Lovable to Supabase

In the Lovable editor, look for the "Supabase" integration option in the sidebar or settings panel. Click "Connect Supabase project" and paste in your Project URL and anon key.

Lovable will automatically set up the required database tables and authentication configuration. If you open your Supabase dashboard after this, you'll see new tables have been created for your app's data.

This is the bit that used to require hours of backend work. Now it takes about 30 seconds.

Explore more tools that pair well with this stack in the vibe coding tools directory on Vibestack.

Step 4: Refine the product through conversation

Once the base app is running, you can iterate by chatting with Lovable. Some useful prompts at this stage:

• "Add a status field to feedback entries — options should be 'open', 'in review', and 'resolved'"
• "Make the dashboard show a summary card at the top with the total number of submissions"
• "Add a search bar to filter feedback entries by keyword"
• "The submit button should be green with rounded corners"

Each of these prompts updates the app in real time. You're directing the product like a designer giving notes to a developer — except the developer is an AI and it implements changes instantly.

Step 5: Test with real users

Lovable gives you a shareable preview URL. Send it to a few people and ask them to try signing up and using the product.

Pay attention to:

• Does the signup flow work without confusion?
• Can users actually find the submit button?
• Does data appear correctly after submission?

Use the feedback to prompt more refinements in Lovable.

Step 6: Set up a custom domain and deploy

When you're ready to make it real, Lovable lets you deploy to a live URL. You can either use the default Lovable subdomain (free) or connect a custom domain.

For a custom domain, buy one from a registrar like Namecheap or Google Domains (~$10/year), then follow Lovable's domain connection instructions to point it at your app.

That's it. You have a live SaaS product.

What Supabase gives you for free

On Supabase's free tier, you get:

• Up to 50,000 monthly active users
• 500MB of database storage
• 1GB of file storage
• Automatic backups

That's more than enough to validate a product and start acquiring your first users. Check the full list of tools that work with Supabase on Vibestack for more ways to extend your stack.

Common issues and how to fix them

Auth emails going to spam: Go to Supabase → Authentication → Email Templates and customise the content. Also check your SMTP settings.

Data not saving: Check Supabase → Table Editor to confirm the rows are being written. If not, there may be a Row Level Security (RLS) policy blocking writes — prompt Lovable to "fix the Supabase RLS policy for [table name]".

App looks different on mobile: Prompt Lovable: "Make the app fully responsive for mobile screens."

FAQ

Do I need to understand React or JavaScript to use Lovable? No. You prompt in plain English and Lovable writes all the code. You don't need to read or understand it.

What happens to my app if I stop paying for Lovable? Lovable lets you export your project's source code. Your Supabase database is also fully independent — the data stays even if you stop using Lovable.

Can I charge users for access to my SaaS? Yes. You'd need to add payment functionality — Lovable can integrate with Stripe via a prompt like "Add Stripe subscription payments with a $9/month plan." It's a real step, but a completely doable one.

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Ready to build your first SaaS? Find the full list of AI app builders, vibe coding tools, and MCP servers on vibestack.in — the go-to directory for non-coders, designers, and founders building with AI.