Lovable vs Bolt: full-stack AI builders, side by side
Both Lovable and Bolt promise the same thing on the homepage: describe an app, get a working one. Under the hood they make very different bets. Lovable defaults to React + Supabase and assumes you want a database. Bolt is a stack-agnostic browser IDE that can spin up Next.js, Astro, SvelteKit, or Vite the moment you pick. The right pick depends less on quality and more on which set of defaults matches the product you actually want to ship.
Verdict
Lovable wins when the product is a CRUD app with users, data, and a dashboard. Bolt wins when you want stack flexibility — a SvelteKit site, an Astro blog, a Vite + React experiment — or when you're scaffolding something that needs to live outside the Supabase model from day one.
What you're actually buying
Lovable is opinionated software disguised as an AI tool. Pick it and you get React, Tailwind, shadcn, Supabase, Vercel deploy targets, and a single-route app shape as defaults. The product makes those choices for you so the agent can spend its tokens reasoning about your idea instead of bikeshedding stack questions.
Bolt is closer to "browser-native Cursor with a build button." It scaffolds whichever stack you ask for, runs the dev server, lets the agent watch logs, and one-clicks a deploy to Netlify or Vercel. The stack defaults are sane but the agent doesn't presuppose your backend choice; you'll need to declare it.
Side-by-side on 10 dimensions
| Dimension | Lovable | Bolt |
|---|---|---|
| Default stack | React + Supabase | Pick at start: Next.js, Astro, SvelteKit, Vite + React |
| Database | Supabase, auto-provisioned | Declare at start: SQLite, Postgres (Neon/Supabase), or none |
| Deploy target | Lovable or Vercel | Netlify or Vercel |
| Iteration loop | Conversational against the running app | Conversational against the running dev server in-browser |
| Code ownership | Full export to GitHub | Full export and the project lives in your browser IDE |
| Pricing (mid-2026) | Free + paid from $20/mo | Free + paid with token-based usage |
| Best for | SaaS, internal tools, CRUD-heavy products | Stack experiments, multi-framework prototypes, static-first sites |
| Where it lands fast | Auth + data + dashboard scaffolds | Any framework not named React + Supabase |
| Where it stalls | Complex non-Supabase backends | Anything that needs a strong opinion on how the backend should look |
| PRD format that works | Tables first, flows second, UI third | Stack declaration first, files second, features third |
When Lovable wins
The product has users that log in. Permissions matter. There's a database with three or more tables. You want auth, RLS, and storage to "just work" so you can spend the first day on the actual product instead of plumbing. Lovable's defaults compound here: every prompt assumes the Supabase-shaped world and rarely re-asks.
When Bolt wins
You're building something that doesn't fit the Supabase shape. An Astro blog with MDX content. A SvelteKit landing page with a small form. A Vite + React prototype that talks to your existing API. A multi-framework demo for a conference talk. Bolt also wins when you genuinely don't know which framework yet and want to try two side by side before committing.
How to think about pricing
Lovable's pricing is plan-based, so a small team can predict the month. Bolt charges by token usage, which is friendlier for small one-off projects but harder to forecast across a real product cycle. Teams that ship multiple v1s a quarter usually end up cheaper on Lovable; solo builders running a handful of prototypes a year often come out ahead on Bolt's metered model.
A real example
Product: ShelfNote, a single-tenant book annotation app for a friend who teaches a literature class.
Scope: A web app where the teacher uploads a PDF, marks passages, writes notes against them, and shares a read-only link with students. No accounts for students. The teacher signs in. No payments. Should live for two semesters and then probably be retired.
Choice and why: Pick Bolt. Single-tenant means the auth and RLS calculus that makes Lovable shine isn't needed. The teacher wants a small Astro site with one protected page; Bolt scaffolds that cleanly in 20 minutes.
Bolt prompt that lands:
Build a small Astro site for ShelfNote. Stack: Astro 4, TypeScript, Tailwind. Database: SQLite via Turso. Pages:
/(read-only book list),/book/[id](PDF viewer with annotations sidebar),/admin(password-protected, lets the teacher upload a PDF and add annotations). Annotations: stored as JSON with start/end positions and a note string. Deploy target: Netlify with a build hook. Single admin password set via env var (no signup flow). Acceptance: teacher uploads a 250-page PDF and annotates 10 passages within 15 minutes of first login.
Acceptance metrics:
- Teacher annotates a full book in under 60 minutes of active time
- Read-only links load the annotated PDF inside 3 seconds on a school WiFi connection
- One Netlify deploy per Friday for two semesters with no agent intervention needed
Risks called out up front:
- PDF rendering libraries are heavy; ship one library, not three, and lazy-load it
- Turso free tier is fine for a single class but would not scale to a school district
How to choose without overthinking it
- Default stack matters more than agent quality at the v1 stage. Pick the one whose defaults match the product you've described to your friends.
- Map your data model in your head. Three or more tables tilts to Lovable. One table or none tilts to Bolt.
- Pick deploy target first if you already have one. On Netlify already? Bolt. On Vercel already? Either.
- Be honest about how long this product needs to live. A two-semester project is a Bolt fit. A real SaaS that you'd be sad to rebuild is a Lovable fit.
- Budget for one re-prompt session. Both tools get a sharper PRD after you've watched them generate once. Plan for an iteration, not a one-shot.
- Don't let pricing dominate. The hour you save with the right defaults is worth more than the $5 to $30/mo delta between plans.
FAQ
Can I move a project from one to the other later?
Yes, but it's not push-button. Both produce real code that exports to GitHub. Moving a Lovable app to Bolt's stack-agnostic shape means rewriting the Supabase wiring as plain database calls. Moving a Bolt project to Lovable means restructuring around Supabase tables and RLS. Treat the choice as a 30-day commitment, not a lifetime one.
Which one is faster to v1?
For CRUD apps, Lovable is faster because Supabase wiring is automatic. For non-CRUD apps (static sites, multi-framework prototypes, anything client-only), Bolt is faster because Lovable will waste tokens trying to provision a database you don't need.
What about integrations like Stripe, Resend, or PostHog?
Both handle them, but the path is different. Lovable typically wires Stripe via a Supabase Edge Function. Bolt wires Stripe directly inside whichever framework you chose. Resend and PostHog work the same in both: drop in the SDK, configure with env vars, ship.
Is the generated code clean enough to extend by hand?
Both produce code a mid-level engineer can read and extend. Lovable's output trends toward more files (one per Supabase concern), while Bolt's output trends toward fewer, denser files (matching the framework conventions you picked). Neither is rough; both are easier to extend than typical scaffolding-tool output.
Should I just use Cursor instead?
Cursor is a different category. It's an agent IDE, not an app generator. Use Lovable or Bolt to land the first working version, then move to Cursor or Claude Code for the long-tail work (auth edge cases, third-party API quirks, performance tuning). The fast workflow is "AI app builder for v1, agent IDE for v1.5 onward."